List of land borders with dates of establishment

This list of land borders with date of establishment identifies the historical year in which borders were established between countries.

Europe

Andorra–France

• • 985 France doesn't help Barcelona versus the Saracens, border between France and Barcelona.
  • 1278 Foix gains co-sovereignty over Andorra next to the bishop of Urgel.

Albania–Greece

• • 1913/1914 after Greek withdrawal due to international diplomatic pressure.

Albania–Montenegro

• Shkodër - Berane
  • 1913 at the treaty of London.
• From Shkodër - Podgorica to Shkodër - Ulcinj
  • 1878 at the treaty of Berlin, border between Montenegro and the Ottoman Empire.
  • 1913 at the treaty of London.

Albania–Republic of Macedonia

• • 1913 at the treaty of London, border between Albania and Serbia.
  • 1991 Independence for the Republic of Macedonia.

Albania–Serbia

• • 1913 at the treaty of London.

Andorra–Spain

• • 1278 Foix gains co-sovereignty over Andorra next to the bishop of Urgel.
  • 1479 Union between Castile and Aragon, the beginning of Spain.

Austria–Czech Republic

• • 12th/13th century, region settled by Germans, border between Austria and Bohemia (Czech Republic).

Austria–Liechtenstein

• • 1719 Creation of Liechtenstein.

Austria–Switzerland

• Stuben - Scuol
  • 1363 Tyrol becomes Austrian, border between Austria and the bishopric of Chur.
  • 1497/1498 Grissons allies with Switzerland.
• Schruns - Davos
  • 1420 Austria acquires Montafon, border between Austria and Toggenburg.
  • 1497/1498 Grissons allies with Switzerland.
• Bregenz - St. Gallen
  • 15th century, Austria becomes the dominant power on the east bank of the Rhine.
  • 1491 Switzerland takes control of the west bank of the Rhine.

Austria–Slovakia

• • 976 Babenberger receive the Eastmark from the German king, border between Austria and Hungary.
  • 1993 Slovakian independence.

Austria–Hungary

• • 1919 at the treaty of Saint-Germain.

Austria–Slovenia

• • 1919 at the treaty of Saint-Germain, border between Austria and Yugoslavia.
  • 1991 Slovenian independence.

Austria–Germany

• • 1871 establishment of the German Empire, border between Austria-Hungary and Germany.

Austria–Italy

• From Nauders - Mals to Lienz - Bruneck
  • 1919 at the treaty of Saint-Germain.
• Kötschach - Paluzza
  • 1st millennium, border between Italy and Carinthia.
  • 1335 Carinthia is inherited by the duke of Austria, border between Austria and Aquileia.
  • 1866 Venice conquered by Italy from Austria.
• Villach - Tarvisio
  • 1919 at the treaty of Saint-Germain.

Azerbaijan–Georgia

• • 1991 Azerbaijani and Georgian independence.

Azerbaijan–Russia

• • 1991 dissolution of the Soviet Union.

Belarus–Latvia

• • 1920 peace between Latvia/Poland and the Soviet Union, border between Latvia and the Soviet Union/Poland.
  • 1991 Belarusian and Latvian independence.

Belarus–Poland

• • 1945 after the annexation of East Poland by Stalin, border between Poland and the Soviet Union.
  • 1991 Belarusian independence.

Belarus–Russia

• From Polatsk - Velikiye Luki to Mahilyow - Klincy
  • 1991 dissolution of the Soviet Union.
• Gomel - Klincy
  • 1667 at the treaty of Andrusovo, border between Russia and Poland-Lithuania.
  • 1991 dissolution of the Soviet Union.

Belarus–Ukraine

• • 1991 Belarusian and Ukrainian independence.

Belgium–Netherlands

• From Knokke-Heist - Cadzand to Bree - Budel
  • 1648 at the peace of Westphalia between the Netherlands and Spain.
  • 1830/1839 after the Belgian Revolution against the (united) Netherlands.
• From Bree - Weert to Plombières - Vaals
  • 1839 at the treaty of London.

Belgium–France

• From De Panne - Bray-Dunes to Poperinge - Godewaersvelde
  • 1697 at the peace of Rijswijk, between France and Spain.
  • 1830/1839 After the Belgian Revolution.
• From Loker - Bailleul to Comines
  • 1713 at the peace of Utrecht, between France and Austria
  • 1830/1839 After the Belgian Revolution.
• From Menen - Tourcoing to Mons - Maubeuge
  • 1697 at the peace of Rijswijk, between France and Spain.
  • 1830/1839 After the Belgian Revolution.
• From Binche - Maubeuge to Chimay - Fourmies
  • 1678/1679 at the peace of Nijmegen, between France and Spain.
  • 1830/1839 After the Belgian Revolution.
• Couvin - Rocroi
  • 941? Border between France and Germany.
  • 1830/1839 After the Belgian Revolution.
• From Couvin - Revin to Agimont - Givet
  • 1678/1679 at the peace of Nijmegen, between France and the bishopric of Liege.
  • 1830/1839 After the Belgian Revolution.
• From Hastière - Givet to Aubange - Longwy
  • 1697 at the peace of Rijswijk, between France and Germany (Spain and the bishopric of Liege).
  • 1830/1839 After the Belgian Revolution.

Belgium–Luxembourg

• From Aubange - Pétange to Gouvy - Huldange
  • 1839 at the treaty of London.
• Burg-Reuland - Leithum
  • 1839 at the treaty of London, between Luxembourg and Prussia.
  • 1919 at the treaty of Versailles.

Belgium–Germany

• • 1919 at the treaty of Versailles.

Bosnia and Hercegovina–Croatia

• • 1995 Dayton Agreement.

Bosnia and Hercegovina–Montenegro

• Sarajevo - Pljevlja
  • 1913 at the treaty of London, border between Montenegro and Austria-Hungary.
  • 1995 Dayton Agreement, border between Bosnia and Hercegovina and Yugoslavia.
  • 2006 Montenegrin independence.
• Sarajevo - Nikšić
  • 1878 at the treaty of Berlin, border between Montenegro and Austria-Hungary.
  • 1995 Dayton Agreement, border between Bosnia and Hercegovina and Yugoslavia.
  • 2006 Montenegrin independence.
• Trebinje - Herceg Novi
  • 1995 Dayton Agreement, border between Bosnia and Hercegovina and Yugoslavia.
  • 2006 Montenegrin independence.

Bosnia and Hercegovina–Serbia

• Zvornik - Loznica
  • 13th century, after Serbian conquest, border between Serbia and Bosnia.
  • 1995 Dayton Agreement, border between Bosnia and Hercegovina and Yugoslavia.
  • 2006 Serbian self-determination.
• Sarajevo - Priboj
  • 1913 at the treaty of London, border between Serbia and Austria-Hungary.
  • 1995 Dayton Agreement, border between Bosnia and Hercegovina and Yugoslavia.
  • 2006 Serbian self-determination.

Bulgaria–Greece

• Petrich - Sidirokastro
  • 1913 at the treaty of London.
• From Smolyan - Xanthi to Svilengrad - Orestiada
  • 1919 at the treaty of Neuilly.

Bulgaria–Republic of Macedonia

• Petric - Strumica
  • 1919 at the treaty of Neuilly, border between Bulgaria and Yugoslavia.
  • 1991 Independence for the Republic of Macedonia.
• Blagoevgrad - Kočani
  • 1913 at the treaty of Bucharest, border between Bulgaria and Serbia.
  • 1991 Independence for the Republic of Macedonia.
• Kyustendil - Skopje
  • 1878 Bulgarian independence, border between Bulgaria and the Ottoman Empire.
  • 1991 Independence for the Republic of Macedonia.

Bulgaria–Romania

• Varna - Constanţa
  • 1878 after the defeat of the Ottoman Empire.
• From Silistra - Feteşti to Vidin - Calafat
  • 1185 After Bulgarian uprise against the Byzantine Empire, border between Bulgaria and the Cumans.
  • 1861 Romanian independence, border between Romania and the Ottoman Empire.
  • 1878 Bulgarian independence.

Bulgaria–Serbia

• Sofia - Pirot
  • 1919 at the treaty of Neuilly, border between Bulgaria and Yugoslavia.
  • 2006 Serbian self-determination.
• Vidin - Zaječar
  • 1878 Bulgarian and Serbian independence.

Bulgaria–Turkey

• Burgas - Kırklareli
  • 1913 at the treaty of London, border between Bulgaria and the Ottoman Empire (Turkey).
• Elhovo - Edirne
  • 1885 after the East Rumelian revolution, border between Bulgaria and the Ottoman Empire (Turkey).
• Svilengrad - Edirne
  • 1919 at the treaty of Neuilly, border between Bulgaria and the Ottoman Empire (Turkey).

Croatia–Hungary

• Osijek - Pécs
  • 1920 at the treaty of Trianon, border between Hungary and Yugoslavia.
  • 1991 Croatian independence.
• From Našice - Pécs to Varaždin - Nagykanizsa
  • 10th century.

Croatia–Montenegro

• • 1991 Croatian independence, border between Croatia and Yugoslavia.
  • 2006 Montenegrin independence.

Croatia–Serbia

• Osijek - Apatin
  • 1995 Dayton agreement, border between Croatia and Yugoslavia.
  • 2006 Serbian self-determination.
• Vukovar - Bačka Palanka
  • 925 Croatia conquers Slavonia, border between Croatia and Hungary.
  • 2006 Serbian self-determination.
• Vukovar - Sremska Mitrovica
  • 1995 Dayton agreement, border between Croatia and Yugoslavia.
  • 2006 Serbian self-determination.

Croatia–Slovenia

• Čakovec - Murska Sobota
  • 1991 Croatian and Slovenian independence.
• From Varaždin - Ptuj to Rijeka - Postojna
  • 10th century, border between Croatia and Germany.
  • 1991 Croatian and Slovenian independence.
• Pazin - Koper
  • 1991 Croatian and Slovenian independence.

Czech Republic–Germany

• From Volary - Neureichenau to Mariánské Lázně - Mähring
  • 843 treaty of Verdun, border between Germany and the Bohemians (Czechs).
• Cheb - Marktredwitz
  • 1266 Egerland (Cheb) becomes Bohemian (dispute whether Bohemia was German at that time).
• From Kraslice - Klingenthal to Hrádek nad Nisou - Zittau
  • 9th century, Bohemia established, border between Bohemia (Czechs) and the Sorbs.
  • 10th century, Germans conquer Sorb territories.

Czech Republic–Poland

• From Liberec - Gorlice to Trutnov - Wałbrzych
  • 9th century, border between Bohemia (Czech Republic) and Great Moravia.
  • 10th century, border between Bohemia (Czech Republic) and Poland.
  • 1945 Stalin gives German Silesia to Poland, border between Poland and Czechoslovakia.
  • 1993 Czechoslovakia dissolved.
• Náchod - Kłodzko to Ostrava - Racibórz
  • 1945 Stalin gives German Silesia to Poland, border between Poland and Czechoslovakia.
  • 1993 Czechoslovakia dissolved.
• Český Těšín - Cieszyn
  • 1919 border between Czechoslovakia and Poland.
  • 1993 Czechoslovakia dissolved.

Czech Republic–Slovakia

• From Břeclav - Senica to Frýdek-Místek - Žilina
  • 10th century, Bohemia acquires Moravia, border between Bohemia (Czech Republic) and Hungary.
  • 1993 Czechoslovakia splits in two.
• Český Těšín - Čadca
  • 1298 Bohemia acquires Upper Silesia, border between Bohemia (Czech Republic) and Hungary.
  • 1993 Czechoslovakia splits in two.

Denmark–Germany

• • 1920 after referendum.

Denmark–Sweden

• • 2000 Copenhagen - Malmö bridge and tunnel

Estonia–Latvia

• • 1918 Latvian and Estonian independence.

Estonia–Russia

• Narva - Ivangorod
  • 1478 Russian conquest of Novgorod, border between Russia and the German Order.
  • 1991 dissolution of the Soviet Union.
• Võru - Pskov
  • 1510 Russian conquest of Pskov, border between Russia and the German Order.
  • 1991 dissolution of the Soviet Union.

Finland–Norway

• • 1751 Treaty of Strömstad

Finland–Russia

• Nellim - Nikel
  • 1946 at the treaty of Paris, border between Finland and the Soviet Union.
• Kuusamo - Topozero
  • 1917 Finnish independence.
• Kotka - Vyborg
  • 1946 at the treaty of Paris, border between Finland and the Soviet Union.

Finland–Sweden

• • 17 September 1809 - Treaty of Fredrikshamn, border between the Grand Duchy of Finland and Sweden.^[1]

France–Switzerland

• Saint-Louis - Basel
  • 1501 Basel becomes a member of the Swiss Confederation, border between the Habsburg territories and Switzerland.
  • 1648 at the treaty of Westphalia.
• Wentzwiller - Oberwil
  • 1648 at the treaty of Westphalia, border between France and the bishopric of Basel.
  • 1815 at the congress of Vienna.
• Leymen - Hofstetten-Flüh
  • 1515 Swiss Solothurn buys Rotberg from the Rotberg family, border between the Habsburg territories and Switzerland.
  • 1648 at the treaty of Westphalia.
• Lutter - Cholholx
  • 1648 at the treaty of Westphalia, border between France and the bishopric of Basel.
  • 1815 at the congress of Vienna.
• Lutter - Kleinlützel
  • 1527 Swiss Solothurn buys Kleinlützel from the monastery of Kleinlützel, border between the Habsburg territories and Switzerland.
  • 1648 at the treaty of Westphalia.
• From Blochmont - Ederswiler to Delle - Buix
  • 1648 at the treaty of Westphalia, border between France and the bishopric of Basel.
  • 1815 at the congress of Vienna.
• Montbéliard–Porrentruy
  • 1815 at the congress of Vienna.
• From Vaufrey - Porrentruy to Pontarlier - Fleurier
  • 1678/1679 at the treaty of Nijmegen, border between France and Germany (bishopric of Basel and Neuchâtel).
  • 1815 at the congress of Vienna.
• From Les Fourgs - Sainte-Croix to Les Rousses - Saint-Cergue
  • 1536 border between Switzerland and Burgundy.
  • 1678/1679 at the treaty of Nijmegen.
• From Gex - Saint-Cergue to Gex - Geneva
  • 1536 after Swiss expansion, border between Switzerland and Savoy.
  • 1601 after French expansion.
  • 1932 borders finally settled.
• Annemasse - Geneva
  • 1536 Geneva member of the Swiss Confederation, border between Switzerland and Savoy.
  • 1860 Savoy ceded to France by Sardinia-Piemonte.
• Douvain - Geneva
  • 1569 Chablais returns to Savoy, border between Switzerland and Savoy.
  • 1860 Savoy ceded to France by Sardinia-Piemonte.
• From Thonon-les-Bains - Monthey to Chamonix-Mont-Blanc - Martigny
  • 15th/16th century, after Swiss expansion, border between Switzerland and Savoy.
  • 1860 Savoy ceded to France by Sardinia-Piemonte.

France–Italy

• Chamonix-Mont-Blanc - Courmayeur
  • 1860 Savoy ceded to France by Sardinia-Piemonte.
• Bourg-Saint-Maurice - Susa
  • 1st millennium, Border between Italy and Burgundy.
  • 1860 Savoy ceded to France by Sardinia-Piemonte.
• Briançon - Cesana Torinese
  • 1st millennium, Border between Italy and Burgundy.
  • 1349 France buys Dauphiné from the heir, border between France and Germany (Savoy and Saluzzo).
  • 1860 after Italian unification.
• Barcelonette - Demonte
  • 1st millennium, Border between Italy and Burgundy.
  • 1481, Provence inherited by the king of France, border between France and Germany (Savoy and Saluzzo).
  • 1860 after Italian unification.
• From Isola - Vinadio to Sospel - Camporosso
  • 1860 Italian unification and Nice ceded to France.
• Menton - Ventimiglia
  • 1860 Italian unification, border between Italy and Mentone.
  • 1861 Mentone annexed by France.

France–Monaco

• • 1848/1861 Revolt in Monaco's hinterland, France annexes rebel territory.

France–Spain

• From Banyuls-sur-Mer - Llanca to Bourg-Madame - Puigcerdà
  • 1659 at the treaty of the Pyrenees.
• Saint-Girons - Rialp
  • 985 France doesn't help its province Barcelona versus de Saracens, border between France and Barcelona.
  • 1479 Aragon and Castile are unified and become known as Spain.
• From Bagnères-de-Luchon - Vielha to Cauterets - Sallent de Gállego
  • 843 at the treaty of Verdun, border between France and Aragon.
  • 1479 Aragon and Castile are unified and become known as Spain.
• Urdos - Canfranc
  • 843 at the treaty of Verdun, border between France and Aragon. (French possession of Béarn was disputed until 1620).
  • 1479 Aragon and Castile are unified and become known as Spain.
• Arette - Isaba
  • 843 at the treaty of Verdun, Border between France and Pamplona.
  • 1512 Castile (Spain) annexes southern Navarra.
• Saint-Étienne-de-Baïgorry - Baztan
  • 1512 Castile (Spain) annexes southern Navarra, border between Castile (Spain) and Lower Navarre.
  • 1620 France annexes Lower Navarre.
• Cambo-les-Bains - Baztan
  • 843 at the treaty of Verdun, Border between France and Pamplona.
  • 1512 Castile (Spain) annexes southern Navarra.
• Hendaye - Irun
  • 843 at the treaty of Verdun, Border between France and Pamplona.
  • 1479 Aragon and Castile are unified and become known as Spain.

France–Germany

• • 17th century/1919 at the treaty of Versailles.

France–Luxembourg

• Esch-sur-Alzette - Villerupt
  • Middle Ages, between Luxembourg and Bar.
  • 1659 at the treaty of the Pyrenees, between France and Spain.
  • 1839 at the treaty of London.
• Dudelange - Thionville
  • 1659 at the treaty of the Pyrenees, between France and Spain.
  • 1839 at the treaty of London.
• Schengen - Sierck-les-Bains
  • Middle Ages, between Luxembourg and Lorraine.
  • 1661 at the treaty of Vincennes, between France and Spain.
  • 1839 at the treaty of London.

France–UK

• Calais - Dover

Georgia–Russia

• From Tblisi - Makhachkala to Kutaisi - Vladikavkaz
  • 1991 dissolution of the Soviet Union.
• Kutaisi - Nalchik
  • 1001, Georgia acquires Abkhazia, border between Georgia and Alania.
  • 1557 Russia conquers Kabardino-Balkaria, border between Russia and the Ottoman Empire.
  • 1991 dissolution of the Soviet Union.
• Sukhumi - Cherkessk
  • 1001, Georgia acquires Abkhazia, border between Georgia and Alania.
  • 1991 dissolution of the Soviet Union.
• Sukhumi - Sochi
  • 15th century, border between Georgia and the Ubykhs.
  • 1991 dissolution of the Soviet Union.

Germany–Luxembourg

• • 1815 at the treaty of Vienna, between the (united) Netherlands and Prussia (German Confederation).
  • 1839 at the treaty of London, between Luxembourg and Prussia (German Confederation).

Germany–Netherlands

• From Aachen - Vaals to Kleve - Gennep
  • 1815 at the Congress of Vienna, between the (united) Netherlands and Prussia (German Confederation).
• From Kranenburg - Groesbeek to Bunde - Nieuweschans
  • 1648 at the peace of Westphalia, between the Netherlands and the Holy Roman Empire of the German nation.

Germany–Poland

• • 1945 Stalin gives Eastern Germany to Poland, border between Soviet occupied Germany and Poland.

Germany–Switzerland

• Lörrach - Basel
  • 1648 at the treaty of Westphalia.
• From Rheinfelden to Laufenburg
  • 1806 at the German Mediatisation (Reichsdeputationshauptschluss), between the Confederation of the Rhine (Germany) and the Republic of Helvetia (Switzerland).
• From Waldshut-Tiengen - Döttingen to the Bodensee
  • 1648 at the treaty of Westphalia.

Greece–Republic of Macedonia

• • 1913 at the treaty of London, border between Greece and Serbia.

Greece–Turkey

• • 1913 at the treaty of London, border between Bulgaria and the Ottoman Empire (Turkey).
  • 1923 at the treaty of Lausanne.

Hungary–Romania

• • 1920 at the treaty of Trianon.

Hungary–Slovakia

• • 1920 at the treaty of Trianon, border between Hungary and Czechoslovakia.

Hungary–Serbia

• • 1920 at the treaty of Trianon, border between Hungary and Yugoslavia.

Hungary–Slovenia

• • 1920 at the treaty of Trianon, border between Hungary and Yugoslavia.
  • 1991 Slovenian independence.

Hungary–Ukraine

• • 1920 at the treaty of Trianon, border between Hungary and Czechoslovakia.

Italy–San Marino

• • 1st millennium/1631, border between San Marino and Papal States.
  • 1860 Italian nationalists conquer the eastern Papal States.

Italy–Slovenia

• Tarvisio - Kranjska Gora
  • 1919 at the treaty of Saint-Germain, border between Italy and Yugoslavia.
  • 1991 Slovenian declaration of independence.
• From Cave del Predil - Strmec na Predelu to Gorizia - Nova Gorica
  • 1947 at the treaty of Paris, border between Italy and Yugoslavia.
• Trieste - Postojna
  • 1954 Free state Trieste dissolved, border between Italy and Yugoslavia.

Italy–Switzerland

• Aosta - Martigny
  • 1477 Swiss ally Valais conquers Martigny, border between Switzerland and Savoy.
  • 1860 Italian unification.
• Valtournenche - Zermatt
  • 1416 Valais allies with Switzerland, border between Switzerland and Savoy.
  • 1860 Italian unification.
• Domodossola - Brig
  • 1st millennium, border between Italy and Burgundy.
  • 1416 Valais allies with Switzerland, border between Switzerland and Milan.
  • 1860 Italian unification.
• From Domodossola - Locarno to Porlezza - Lugano
  • 1512 after Swiss conquest of Milan, border between Switzerland and Milan.
  • 1860 Italian unification.
• From Madesimo - Splügen to Livigno - Zernez
  • 1st millennium, border between Italy and the Frankish Empire.
  • 1497/1498 Grissons allies with Switzerland, border between Switzerland and Milan.
  • 1860 Italian unification.
• Taufers im Münstertal - Müstair
  • 1497/1498 Grissons allies with Switzerland, border between Switzerland and the Habsburg territories.
  • 1919 at the treaty of Saint-Germain.

Italy–Vatican City

• • 1929 Lateran Treaty

Ireland–UK

• • 1921 Independence of Ireland.

Latvia–Lithuania

• • 1236 Lithuanian state established, border between Lithuania and other Balts.
  • 1918 Lithuanian and Latvian independence.

Lithuania–Belarus

• • 1991 Belarusian and Lithuanian independence.

Lithuania–Poland

• • 1919 at the treaty of Versailles.

Lithuania–Russia

• Kybartai - Gusev
  • 13th century, border between Lithuania and the Baltic Prussians.
  • 1991 dissolution of the Soviet Union.
• Tauragė - Sovetsk
  • 1923 after Lithuanian annexation, border between Lithuania and Germany.
  • 1991 dissolution of the Soviet Union.

Latvia–Russia

• Rēzekne - Pskov
  • 1510, Russian conquest of Pskov, border between Russia and the German Order.
  • 1991 dissolution of the Soviet Union.
• Rēzekne - Sebez
  • 1920 peace between Latvia and the Soviet Union.
  • 1991 dissolution of the Soviet Union.

Liechtenstein–Switzerland

• Vaduz - Igis
  • 1497/1498 Grissons allies with Switzerland, border between Switzerland and Brandis.
  • 1719 Creation of Liechtenstein.
• Vaduz - Mels
  • 1436 Inhabitants of Sargans become citizens of Swiss Zürich, border between Switzerland and Brandis.
  • 1719 Creation of Liechtenstein.
• Vaduz - Buchs
  • 1485 Swiss Luzern buys Werdenberg, border between Switzerland and Brandis.
  • 1719 Creation of Liechtenstein.
• Bendern - Salez
  • 1458 Lords of Sax-Forstegg ally with Switzerland, border between Switzerland and Brandis.
  • 1719 Creation of Liechtenstein.

Republic of Macedonia–Serbia

• • 1991 Independence for the Republic of Macedonia, border between the Republic of Macedonia and Yugoslavia.

Moldova–Romania

• Bălţi - Iaşi
  • 1861 Romanian independence, border between Romania and Russia.
  • 1991 Moldovan independence.
• Cahul - Brăila
  • 1878 after Russian annexation, border between Romania and Russia.
  • 1991 Moldovan independence.

Moldova–Ukraine

• • 1991 Moldovan and Ukrainian independence.

Montenegro–Serbia

• • 1913 at the treaty of London.

Norway–Russia

• • 1826 borders fixed between Russia and Norway, border between Russia and Sweden-Norway.

Norway–Sweden

• Halden - Uddevalla
  • 1658 at the treaty of Roskilde, border between Sweden and Denmark-Norway.
• From Halden - Mellerud to Hamar - Mora
  • 10th and 11th centuries
• From Engerdal - Idre to Trondheim - Storuman
  • 1645 at the treaty of Brömsebro, border between Sweden and Denmark-Norway.
• From Bodø - Storuman to Tromsø - Kiruna
  • 16th century, Swedish king decides to use the water flux line between the Atlantic and the Baltic as border between Sweden and Denmark-Norway.

Poland–Slovakia

• • 10th/11th century, border between Poland and Hungary.

Poland–Russia

• • 1945 Stalin divides German East Prussia, border between Poland and the Soviet Union.

Poland–Ukraine

• From Chełm - Kovel to Przemyśl - Sambir
  • 1945 after the annexation of East Poland by Stalin, border between Poland and the Soviet Union.
  • 1991 Ukrainian independence.
• Kremenaros-Krzemieniec - Uzhok Pass
  • 11th century, border between Poland and Hungary.
  • 1991 Ukrainian independence.

Portugal–Spain

• From Faro - Huelva to Portalegre - Cáceres
  • 12th/13th century, conquered by Portugal, border between Portugal and León/Castile.
  • 1479 Union between Castile and Aragon, the beginning of Spain.
• From Guarda - Salamanca to Braga - Vigo
  • 1139 Portugal becomes independent from León-Castile, border between Portugal and León-Castile.
  • 1479 Union between Castile and Aragon, the beginning of Spain.
  • 1864 Treaty of Lisbon sets border.

Romania–Ukraine

• Sighetu Marmaţiei - Chust
  • 1919 at the treaty of Versailles, border between Romania and Czechoslovakia/Polish or Ukrainian East Galicia.
  • 1991 Ukrainian independence.
• Suceava - Chernivtsi
  • 1940/1944 border between Romania and the Soviet Union.
  • 1991 Ukrainian independence.
• Brăila - Izmayil
  • 1878 Romanian annexation of Dobruja, border between Romania and Russia.
  • 1991 Ukrainian independence.

Romania–Serbia

• Drobeta-Turnu Severin - Negotin
  • 1284 after Serbian conquest, border between Serbia and Hungary.
  • 1861 Romanian independence, border between Romania and Ottoman Empire.
  • 1878 Serbian independence.
• Anina - Bor
  • 1284 after Serbian conquest, border between Serbia and Hungary.
  • 1919 at the treaty of Saint-Germain, border between Romania and Yugoslavia.
  • 2006 Serbian self-determination.
• Timişoara - Belgrade
  • 1919 at the treaty of Saint-Germain, border between Romania and Yugoslavia.
  • 2006 Serbian self-determination.

Russia–Ukraine

• • 1991 dissolution of the Soviet Union.

Slovakia–Ukraine

• • 1991 Ukrainian independence, border between Ukraine and Czechoslovakia.
  • 1993 Slovakian independence.

Spain–UK

• La Línea de la Concepción - Gibraltar
  • 1713 at the treaty of Utrecht, border between Spain and Great Britain (United Kingdom).

Asia

Afghanistan–China

• • 18th century

Afghanistan–Iran

• • 1857 Great Britain establishes the border between Persia (Iran) and Afghanistan after the Iranian defeat during the Anglo-Persian War

Afghanistan–Pakistan

• • 1919 Afghanistan becomes independent from the British Empire, border between Afghanistan and the British Empire
  • 1947 Pakistan becomes independent from the United Kingdom

Afghanistan–Tajikistan

• • 1885 After Russian conquest of Panjdeh, border between Afghanistan and Russia
  • 1991 Tajikistani independence

Afghanistan–Turkmenistan

• • 1885 After Russian conquest, border between Afghanistan and Russia
  • 1991 Turkmenistani independence

Afghanistan–Uzbekistan

• • 1885 After Russian conquest, border between Afghanistan and Russia
  • 1991 Uzbekistani independence

Armenia–Azerbaijan

• • 1991 Armenian and Azerbaijani independence.

Armenia–Georgia

• • 1991 Armenian and Georgian independence.

Armenia–Turkey

• • 1921 at the treaty of Kars, border between Turkey and the Soviet Union.
  • 1991 Armenian independence.

Azerbaijan–Iran

• Lankaran - Ardabil
  • 1828 at the treaty of Turkmenchay, border between Russia and Persia (Iran).
  • 1991 Azerbaijani independence.
• Stepanakert - Tabriz
  • 1813 at the treaty of Gulistan, border between Russia and Persia (Iran).
  • 1991 Azerbaijani independence.
• Nakhchivan - Tabriz
  • 1828 at the treaty of Turkmenchay, border between Russia and Persia (Iran).
  • 1991 Azerbaijani independence.

Azerbaijan–Turkey

• • 1921 at the treaty of Kars, border between Turkey and the Soviet Union.
  • 1991 Azerbaijani independence.

Bangladesh–Burma

• Chittagong–Mandalay
  • 1558 Burma conquers Manipur, border between Burma and Arakan
  • 1971 Bangladesh becomes independent from Pakistan
• Chittagong–Sittwe
  • 1784 Burma conquers Arakan, border between Burma and Great Britain
  • 1971 Bangladesh becomes independent from Pakistan

Bangladesh–India

• • 1947 Indian independence from the United Kingdom, border between India and Pakistan
  • 1971 Bangladesh becomes independent from Pakistan

Bhutan–India

• • 1616 Bhutan becomes independent from Tibet, border between Bhutan and the Kamata Kingdom
  • 1947 Indian independence

Bhutan–China

• • 1616 Bhutan becomes independent from Tibet, border between Bhutan and Tibet
  • 1724 China conquers Tibet from the Dzungars

Brunei–Malaysia

• • 1963 Establishment of Malaysia, border between the British protectorate of Brunei and Malaysia
  • 1984 End of the British protectorate

Burma–India

• • 1826 Treaty of Yandabo, Border between Burma and the United Kingdom
  • 1947 Indian independence, border between India and the United Kingdom
  • 1948 Burmese independence

Burma–China

• Myitkyina–Dsayul
  • 11th century, Pagan establishes Burma, border between Burma and the Tibetans
  • 1724 China conquers Tibet from the Dzungars
• Myitkyina–Baoshan
  • 109 BC, China conquers the Dian kingdom, border between China and the Mon people
  • 11th century, Pagan establishes Burma, border between Burma and Dali
  • 1555 Burma conquers Upper Burma
  • 1769 Last Chinese invasion
• From Lashio–Baoshan to Kengtung–Simao
  • 109 BC, China conquers the Dian Kingdom, border between China and the Mon people
  • 1557 Burma conquers the Shan States
  • 1769 Last Chinese invasion

Burma–Thailand

• Kengtung–Chang Mai
  • 1557 Pagan (Burma) conquers the Shan states, border between Burma and Chiang Mai
  • 1774 Thailand conquers Chiang Mai from Burma
• Rangoon–Chang Mai
  • 1530s or 1540s, Burma is established out of several small states, border between Burma and Chiang Mai
  • 1774 Thailand conquers Chiang Mai from Burma
• Tavoy–Bangkok
  • 1057 Thaton is conquered by Pagan (Burma), border between Pagan (Burma) and the Khmer Empire
  • 16th-18th century, Burma conquers the Mon kingdoms

Cambodia–Laos

• • 1353 Lan Xang (Laos) becomes independent from the Khmer Empire (Cambodia)

Cambodia–Thailand

• Phnom Penh–Udon Thani
  • 1353 Lan Xang (Laos) becomes independent from the Khmer Empire (Cambodia), Border between the Khmer Empire and Lan Xang
  • 15th or 16th century, Ayutthaya Kingdom (Thailand) conquers western Lan Xang
• Phnom Penh–Bangkok
  • 14th/15th century, Ayutthaya Kingdom (Thailand) conquers the western part of the Khmer Empire (Cambodia)

Cambodia–Vietnam

• • 1953 Cambodia becomes independent from France, border between Cambodia and France
  • 1975 North Vietnam and South Vietnam are re-unified

China–Laos

• • 109 BC, China conquers the Dian Kingdom, border between China and the Mon people
  • 1353 Establishment of the kingdom of Lan Xang, border between Lan Xang (Laos) and the Mongolian Empire
  • 1381 Ming China conquers Yunnan from Yuan (Mongolian) loyalists

China–Pakistan

• • 1963 Trans-Karakoram Treaty

China–India

• Shahidulla Mazar–Leh
  • 1984 After Indian offensive against Pakistan on Siachen Glacier at 5,000 meters above sea level, disputed
• Gartog–Leh
  • 1962 Disputed, cease fire
• Gartog–Shimla
  • 1724 China conquers Tibet from the Dzungars, border between China and the Mughal Empire
  • 1947 Indian independence, border between India and Tibet
  • 1951 Tibet cedes de facto sovereignty to the People's Republic of China
• Khampa Dsong–Gangtok
  • 1724 China conquers Tibet from the Dzungars, border between China and Sikkim
  • 1947 Indian independence, border between India and Tibet
  • 1951 Conquest of Tibet by China
• Lhasa–Tinsukia
  • 1947 Indian independence, border between India and Tibet
  • 1951 Conquest of Tibet by China

China–Kazakhstan

• • 1881 at the treaty of Saint Petersburg, border between China and Russia.
  • 1991 Kazakhstani independence.

China–Kyrgyzstan

• • 1881 At the Treaty of Saint Petersburg, border between China and Russia
  • 1991 Kyrgyzstani independence

China–Mongolia

• • 1911 Mongolian independence.

China–Nepal

• • 1724 China conquers Tibet from the Dzungars, border between China and the Nepalese kingdoms
  • 1768 The king of Gorkha unites all Nepalese kingdoms into one

China–North Korea

• • 1895/1910 after Japanese conquest, border between China and Japan.
  • 1945/1948 North Korean independence.

China–Tajikistan

• • 1757 China conquers Sinkiang, border between Bukhara and China
  • 1991 Tajikistani independence

China–Russia

• From Mudanjiang - Vladivostok to Mohe - Never
  • 1858 at the treaty of Aigun.
• Manzouli - Krasnokamensk
  • 1689 at the treaty of Nerchinsk.
• Altay - Gorno-Altaysk
  • 1755, China acquires the Ili-basin, border between China and the Altays.
  • 1758, Russia acquires part of the Altay territory.

China–Vietnam

• Malipo–Hanoi
  • 1st millennium BC?, border between Văn Lang (Vietnam) and the Dian Kingdom
  • 938, Vietnam becomes independent from China
• Nanning–Hanoi
  • 1st millennium BC?, border of Văn Lang (Vietnam)
  • 214 BC, China conquers Guangxi

East Timor–Indonesia

• • 1949 Indonesia becomes independent from the Netherlands, border between Indonesia and Portugal
  • 2002 East Timor becomes independent from Indonesia

Egypt–Israel

• • 1841 The United Kingdom forces Egypt to retreat from the Levant, border between Egypt and the Ottoman Empire
  • 1948 Israeli independence

Georgia–Turkey

• • 1921 at the treaty of Kars, border between Turkey and the Soviet Union.
  • 1991 Georgian independence.

India–Nepal

• Siliguri–Kathmandu
  • 1923 The British Empire recognizes the independence of Nepal, border between Nepal and the British Empire
  • 1947 Indian independence from the United Kingdom
• Patna–Kathmandu
  • 1768 The king of Gorkha unites all Nepalese kingdoms into one, border between Nepal and Great Britain
  • 1947 Indian independence from the United Kingdom
• Gorakhpur–Kathmandu
  • 1768 The king of Gorkha unites all Nepalese kingdoms into one, border between Nepal and the Mughal Empire
  • 1947 Indian independence from the United Kingdom
• Delhi–Kathmandu
  • 1923 The British Empire recognizes the independence of Nepal, border between Nepal and the British Empire
  • 1947 Indian independence from the United Kingdom

India–Pakistan

• Siachen Glacier
  • 1984 After Indian offensive on a glacier at 5,000 meters above sea level
• From Srinagar–Skardu to Ahmedabad–Karachi
  • 1947 Independence of India and Pakistan from the United Kingdom and cease fire line of the war between India and Pakistan

Indonesia–Malaysia

• • 1949 Indonesia becomes independent from the Netherlands, border between Indonesia and the United Kingdom
  • 1963 Establishment of Malaysia

Iran–Iraq

• • 16th century, border between Persia (Iran) and the Ottoman Empire
  • 1932 Iraqi independence

Iran–Pakistan

• • 1872 Border agreement between Persia (Iran) and the British Empire
  • 1947 Pakistan becomes independent from the United Kingdom

Iran–Turkey

• • 16th century, border between Persia (Iran) and the Ottoman Empire (Turkey).

Iran–Turkmenistan

• • 1885 After Russian conquest of Merv, border between Iran and Russia
  • 1991 Turkmenistani independence

Iraq–Jordan

• • 1932 Iraqi independence, border between Iraq and the British League of Nations mandate of Palestine
  • 1946 Jordanian independence

Iraq–Kuwait

• • 1932 Iraqi independence, border between Iraq and the British protectorate of Kuwait
  • 1961 Kuwaiti independence

Iraq–Saudi Arabia

• Baghdad–Al-Jawf
  • 1926 Unification of Nejd and Hijaz, border between Saudi Arabia and the British League of Nations mandate of Iraq
  • 1932 Iraqi independence
• Nasiriyah–Ar Riyad
  • 1975/1991 The Saudi-Iraqi neutral zone is split in two parts

Iraq–Syria

• • 1932 Iraqi independence, border between Iraq and the French League of Nations mandate of Syria
  • 1944 Syrian independence

Iraq–Turkey

• • 1923 at the treaty of Lausanne, border between Turkey and the British League of Nations mandate of Iraq.
  • 1932 Iraqi independence.

Israel–Syria

• • 1944 Syrian independence, border between Syria and the British League of Nations mandate of Palestine
  • 1948 Israeli independence

Israel–Jordan

• Hefa–Irbid
  • 1047 BC, border between Israel and Aram Damascus
  • 1946 Jordanian independence, border between Jordan and the British United Nations mandate of Palestine
  • 1948 Israeli independence
• From Beersheba–Ma'an to Eilat–Al-'Aqabah
  • 1946 Jordanian independence, border between Jordan and the British United Nations mandate of Palestine
  • 1948 Israeli independence

Jordan–Syria

• • 1944 Syrian independence, border between Syria and the British League of Nations mandate of Palestine
  • 1946 Jordanian independence

Jordan–Saudi Arabia

• • 1926 Unification of Nejd and Hijaz, border between Saudi Arabia and the British League of Nations mandate of Palestine
  • 1946 Independence of Jordan

Kazakhstan–Kyrgyzstan

• • 1991 Kazakhstani and Kyrgyzstani independence.

Kazakhstan–Russia

• • 1991 dissolution of the Soviet Union.

Kazakhstan–Turkmenistan

• • 1991 Kazakhstani and Turkmenistani independence.

Kazakhstan–Uzbekistan

• • 1991 Kazakhstani and Uzbekistani independence.

Kuwait–Saudi Arabia

• Al-Kuwayt–Al-Hafar al-Batin
  • 1926 Unification of Nejd and Hijaz, border between Saudi Arabia and the British protectorate of Kuwait
  • 1961 Kuwaiti independence
• Al-Kuwayt–Damman
  • 1970 The Saudi-Kuwaiti neutral zone is split in two parts

Kyrgyzstan–Tajikistan

• • 1991 Kyrgyzstani and Tajikistani independence

Kyrgyzstan–Uzbekistan

• • 1991 Kyrgyzstani and Uzbekistani independence

Laos–Burma

• • 1353 Establishment of Lan Xang (Laos), border between Lan Xang and the Shan states
  • 1557 Burma conquers the Shan States

Laos–Thailand

• Luang Prabang–Chiang Mai
  • 1353 Establishment of Lan Xang (Laos), border between Lan Xang (Laos) and Lanna
  • 1774 Lanna is conquered by Thailand, border between Thailand and Luang Prabang
  • 1954 Laos becomes independent from France
• Vientiane–Nakhon Ratchasima
  • 1893 France conquers Vientiane from Thailand, border between Thailand and France
  • 1954 Laos becomes independent from France

Laos–Vietnam

• Phong Saly–Lai Châu
  • 1st millennium BC, border between Văn Lang (Vietnam) and the Mon people
  • 1353 Establishment of Lan Xang (Laos)
• Luang Prabang–Hanoi
  • 938 Vietnamese independence from China, border between Vietnam and the Tai
  • 1353 Establishment of Lan Xang (Laos)
• Vientiane–Xa-doai
  • 938 Vietnamese independence from China, border between Vietnam and the Khmer Empire
  • 1353 Establishment of Lan Xang (Laos)
• Chamrap–Ða Nang
  • 1353 Establishment of Lan Xang (Laos), border between Lan Xang and Champa
  • 1475 Vietnam conquers northern Champa

Lebanon–Syria

• • 1941/1943 Lebanese independence, border between Lebanon and the French League of Nations mandate of Syria
  • 1944 Syrian independence

Lebanon–Israel

• • 1941/1943 Lebanese independence, border between Lebanon and the British League of Nations mandate of Palestine
  • 1948 Israeli independence

Malaysia–Singapore

• • 1965 Singapore becomes independent from Malaysia (land connection via causeways)

Malaysia–Thailand

• • 1909 Treaty of Bangkok, border between Thailand and the British Empire
  • 1963 Establishment of Malaysia

Mongolia–Russia

• From Choibalsan - Krasnokamensk to Mörön - Tulun
  • 1727 at the treaty of Kyakhta, border between Russia and China.
  • 1911 Mongolian independence.
• From Mörön - Kyzyl to Ulaangom - Kyzyl
  • 1912/1944 Russia annexes Tuva.
• Ölgij - Gorno-Altaysk
  • 1758, Russia acquires part of the Altay territory, border between China and Russia.
  • 1911 Mongolian independence.

North Korea–South Korea

• • 1953 after cease fire.

North Korea–Russia

• • 1858 at the treaty of Aigun, border between Russia and China.
  • 1948 Creation of North Korea, border between North Korea and the Soviet Union.
  • 1991 Russian self-determination.

Oman–Saudi Arabia

• • 1990 Border agreement

Oman–United Arab Emirates

• Khasab–Dubai
  • 1971 The United Arab Emirates and Oman become independent from the United Kingdom
• Shinas–Dubai
  • 1971 The United Arab Emirates and Oman become independent from the United Kingdom
• Al Buraymi–Abu Zabi
  • 1971 The United Arab Emirates and Oman become independent from the United Kingdom
  • 1999 Border dispute on Al-Buraymi resolved

Oman–Yemen

• • 1971 Omani independence, border between Oman and South Yemen
  • 1990 North Yemen conquers South Yemen
  • 1992 Border dispute between Oman and Yemen settled about Habarut

Saudi Arabia–Qatar

• • 2009 Signed at the UN headquarters

Saudi Arabia–United Arab Emirates

• • 1974 Treaty of Jeddah, disputed

Saudi Arabia–Yemen

• Ar Riyad–Al-Mukalla
  • 1926 Unification of Nejd and Hijaz, border between Saudi Arabia and the British protectorate of Aden
  • 1990 Conquest of South Yemen by North Yemen
• Jizan–San'a
  • 1934 Treaty of Taif, border between Saudi Arabia and (North) Yemen

Syria–Turkey

• From Nusaybin - Cizre to Aleppo - Gaziantep
  • 1923 at the treaty of Lausanne, border between Turkey and the French League of Nations mandate of Syria.
  • 1944 Syrian independence.
• Aleppo - Antakya
  • 1939 after referendum, border between Turkey and the French League of Nations mandate of Syria.
  • 1944 Syrian independence.

Tajikistan–Uzbekistan

• • 1991 Tajikistani and Uzbekistani independence

Turkmenistan–Uzbekistan

• • 1991 Turkmenstani and Uzbekistani independence

Oceania

Indonesia–Papua New Guinea

• • 1969 The Netherlands cedes Papua to Indonesia, border between Indonesia and Australia
  • 1975 Papua New Guinea becomes independent from Australia

Africa

Algeria–Libya

• • 1951 Libya becomes independent, border between Libya and France
  • 1962 Algeria becomes independent

Algeria–Mali

• • 1960 Mali becomes independent, border between Mali and France
  • 1962 Algeria becomes independent

Algeria–Mauritania

• • 1960 Mauritania becomes independent, border between Mauritania and France
  • 1962 Algeria becomes independent

Algeria–Morocco

• Tlemcen–Oujda
  • 1554 Morocco is established after a merger of small states, border between Morocco and the Ottoman Empire
  • 1710 Algiers (Algeria) becomes independent
• Béchar–Casablanca
  • 1844 Border between France and Morocco established after a war
  • 1962 Algerian independence, border is disputed

Algeria–Niger

• • 1960 Niger becomes independent, border between Niger and France
  • 1962 Algeria becomes independent

Algeria–Tunisia

• • 1529 Tunis (Tunisia) loses Constantine to the Ottoman Empire, border between Tunis and the Ottoman Empire
  • 1710 Algiers (Algeria) becomes independent

Angola–Democratic Republic of the Congo

• • 1960 Congolese independence, border between Congo-Léopoldville (DRC) and Portugal
  • 1975 Angola becomes independent

Angola–Namibia

• • 1975 Angola becomes independent, border between Angola and South Africa
  • 1990 Namibia becomes independent

Angola–Republic of the Congo

• • 1960 Congolese independence, border between Congo-Brazzaville (RC) and Portugal
  • 1975 Angola becomes independent

Angola–Zambia

• • 1964 Zambia becomes independent, border between Zambia and Portugal
  • 1975 Angola becomes independent

Benin–Burkina Faso

• • 1960 Independence for Benin and Burkina Faso

Benin–Niger

• • 1960 Independence for Benin and Niger

Benin–Nigeria

• • 1960 Independence for Benin and Nigeria

Burkina Faso–Togo

• • 1960 Independence for Burkina Faso and Togo

Burkina Faso–Ghana

• • 1957 Ghana becomes independent, border between Ghana and France
  • 1960 Togo becomes independent

Burkina Faso–Côte d'Ivoire

• • 1960 Independence for Burkina Faso and Côte d'Ivoire

Burkina Faso–Mali

• • 1960 Independence for Burkina Faso and Mali

Burkina Faso–Niger

• • 1960 Independence for Burkina Faso and Niger

Botswana–South Africa

• • 1931 South Africa becomes independent, border between South Africa and the United Kingdom
  • 1966 Botswana becomes independent

Botswana–Zimbabwe

• • 1966 Botswana becomes independent, border between Botswana and Rhodesia
  • 1980 Zimbabwe becomes independent

Botswana–Namibia

• • 1966 Botswana becomes independent, border between Botswana and South Africa
  • 1990 Namibia becomes independent

Burundi–Democratic Republic of the Congo

• • 16th century, Establishment of Burundi, border of Burundi
  • 1960 Congolese independence, border between Congo-Léopoldville (DRC) and Belgium
  • 1962 Burundi becomes independent

Burundi–Rwanda

• • 2nd Millennium, Establishment of Burundi and Rwanda
  • 1962 Burundi and Rwanda become independent from Belgium

Burundi–Tanzania

• • 16th century, Establishment of Burundi, border of Burundi
  • 1962 Burundi becomes independent, border between Burundi and Tanganyika
  • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar

Cameroon–Central African Republic

• • 1960 Independence for Cameroon and the Central African Republic

Cameroon–Republic of the Congo

• • 1960 Independence for Cameroon and Congo-Brazzaville (RC)

Central African Republic–Republic of the Congo

• • 1960 Central African and Congolese independence

Central African Republic–Democratic Republic of the Congo

• • 1960 Central African and Congolese independence

Central African Republic–Chad

• • 1960 Independence for the Central African Republic and Chad

Cameroon–Gabon

• • 1960 Independence for Cameroon and Gabon

Cameroon–Equatorial Guinea

• • 1960 Cameroon becomes independent, border between Cameroon and Spain
  • 1968 Equatorial Guinea becomes independent

Cameroon–Chad

• • 1960 Independence for Cameroon and Chad

Cameroon–Nigeria

• Garoua–Maiduguri
  • 1960 Cameroon becomes independent, border between Cameroon and the British United Nations mandate of Cameroons
  • 1961 Northern Cameroons votes to become part of Nigeria
• Bamenda–Yola
  • 1961 After a referendum it is decided that Northern Cameroons becomes part of Nigeria and Southern Cameroons part of Cameroon
• Douala–Calabar
  • 1960 Nigerian independence, border between Nigeria and the British United Nations mandate of Cameroons
  • 1961 Southern Cameroons votes to become part of Cameroon

Chad–Libya

• • 1951 Libya becomes independent, border between Libya and France
  • 1960 Chad becomes independent

Chad–Niger

• • 1960 Independence for Chad and Niger

Chad–Nigeria

• • 1980s, Lake Chad nearly dried up, border of Chad and Nigeria becomes a land border

Central African Republic–Sudan

• • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and France
  • 1960 The Central African Republic becomes independent

Chad–Sudan

• • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and France
  • 1960 Chad becomes independent

Côte d'Ivoire–Mali

• • 1960 Independence for Côte d'Ivoire and Mali

Côte d'Ivoire–Guinea

• • 1958 Guinea becomes independent, border between Guinea and France
  • 1960 Côte d'Ivoire becomes independent

Côte d'Ivoire–Liberia

• San Pédro–Harper
  • 1857 The Republic of Maryland joins Liberia, border of Liberia
  • 1960 Côte d'Ivoire becomes independent
• Man–Zwedru
  • 1892 Border agreement between Liberia and France
  • 1960 Côte d'Ivoire becomes independent

Democratic Republic of the Congo–Sudan

• • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and Belgium
  • 1960 Congolese independence

Democratic Republic of the Congo–Republic of the Congo

• • 1960 Independence for both Congo's, both named Republic of the Congo at the time

Democratic Republic of the Congo–Rwanda

• • 2nd Millennium, Establishment of Rwanda, border of Rwanda
  • 1960 Congolese independence, border between Congo-Léopoldville (DRC) and Belgium
  • 1962 Rwanda becomes independent

Democratic Republic of the Congo–Uganda

• • 1960 Congolese independence, border between Congo-Léopoldville (DRC) and the United Kingdom
  • 1962 Uganda becomes independent

Democratic Republic of the Congo–Zambia

• • 1960 Congolese independence, border between Congo-Léopoldville (DRC) and the United Kingdom
  • 1964 Zambia becomes independent

Djibouti–Eritrea

• • 1977 Djibouti becomes independent, border between Djibouti and Ethiopia
  • 1991 Eritrean independence

Djibouti–Ethiopia

• • 1897 Border established between Abyssinia (Ethiopia) and France
  • 1977 Djibouti becomes independent

Djibouti–Somalia

• • 1960 Somalian independence, border between Somalia and France
  • 1977 Djibouti becomes independent

Egypt–Libya

• • 1922 Egyptian independence, border between Egypt and Italy (Italian Libya)
  • 1951 Libyan independence

Egypt–Sudan

• • 1956 Sudanese independence from the United Kingdom and Egypt

Equatorial Guinea–Gabon

• • 1960 Gabon becomes independent, border between Gabon and Spain
  • 1968 Equatorial Guinea becomes independent

Eritrea–Sudan

• • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and Ethiopia
  • 1991 Eritrean independence

Eritrea–Ethiopia

• • 1900/1902/1908 Border established between Abyssinia (Ethiopia) and Italy
  • 1991 Eritrean independence

Ethiopia–Kenya

• • 1907 Border agreement between Abyssinia (Ethiopia) and the British Empire
  • 1963 Kenya becomes independent

Ethiopia–Sudan

• • 1902 Border between Abyssinia (Ethiopia) and the United Kingdom established
  • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and Ethiopia

Ethiopia–Somalia

• Harar–Hargeysa
  • 1897 Anglo-Egyptian Treaty, border between Abyssinia (Ethiopia) and the British Empire
  • 1960 Somalian independence
• Adis Abeba–Muqdisho
  • 1897 Border agreement between Abyssinia (Ethiopia) and Italy
  • 1960 Somalian independence

Gabon–Republic of the Congo

• • 1960 Independence for Gabon and Congo-Brazzaville (RC)

The Gambia–Senegal

• • 1960 Senegal becomes independent, border between Senegal and the United Kingdom
  • 1965 The Gambia becomes independent

Ghana–Togo

• • 1957 Ghana becomes independent, border between Ghana and the French United Nations mandate of Togoland
  • 1960 Togo becomes independent

Ghana–Côte d'Ivoire

• • 1957 Ghana becomes independent, border between Ghana and France
  • 1960 Côte d'Ivoire becomes independent

Guinea–Liberia

• • 1892 Border agreement between Liberia and France
  • 1958 Guinea becomes independent

Guinea–Sierra Leone

• • 1958 Guinea becomes independent, border between Guinea and the United Kingdom
  • 1961 Sierra Leone becomes independent

Guinea–Mali

• • 1958 Guinea becomes independent, border between Guinea and France
  • 1960 Mali becomes independent

Guinea–Senegal

• • 1958 Guinea becomes independent, border between Guinea and France
  • 1960 Senegal becomes independent

Guinea–Guinea-Bissau

• • 1958 Guinea becomes independent, border between Guinea and Portugal
  • 1973/1974 Guinea-Bissau becomes independent

Guinea–Bissau-Senegal

• • 1960 Senegal becomes independent, border between Senegal and Portugal
  • 1973/1974 Guinea-Bissau becomes independent

Kenya–Sudan

• • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and the United Kingdom
  • 1963 Kenya becomes independent

Kenya–Somalia

• • 1960 Somalian independence, border between Somalia and the United Kingdom
  • 1963 Kenya becomes independent

Kenya–Uganda

• • 1962 Uganda becomes independent, border between Uganda and the United Kingdom
  • 1963 Kenya becomes independent

Kenya–Tanzania

• • 1963 Kenya becomes independent, border between Kenya and Tanganyika
  • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar

Lesotho–South Africa

• Maseru–Pietermaritzburg
  • 1822 Establishment of Basutoland (Lesotho), border between Basutoland and the Zulu Kingdom
  • 1931 South Africa becomes independent, border between South Africa and the United Kingdom
  • 1966 Lesotho becomes independent
• Maseru–East London
  • 1822 Establishment of Basutoland (Lesotho), border between Basutoland and the Xhosa
  • 1931 South Africa becomes independent, border between South Africa and the United Kingdom
  • 1966 Lesotho becomes independent
• Maseru–Bloemfontein
  • 1931 South Africa becomes independent, border between South Africa and the United Kingdom
  • 1966 Lesotho becomes independent

Libya–Niger

• • 1951 Libyan independence, border between Libya and France
  • 1960 Niger becomes independent

Libya–Sudan

• • 1951 Libyan independence, border between Libya and the United Kingdom
  • 1956 Sudanese independence from the United Kingdom and Egypt

Libya–Tunisia

• • 1321 Tripolitania becomes independent from Tunis (Tunisia), border between Tripolitania and Tunis
  • 1951 Libya becomes independent, border between Libya and France
  • 1956 Tunisia becomes independent

Liberia–Sierra Leone

• Robertsport–Freetown
  • 1847 Liberia becomes independent from the United States, border of Liberia
  • 1961 Sierra Leone becomes independent
• Voinjama–Koidu
  • 1885 Border agreement between Liberia and the British Empire
  • 1961 Sierra Leone becomes independent

Mali–Senegal

• • 1960 Independence for Mali and Senegal

Mali–Mauritania

• • 1960 Independence for Mali and Mauritania

Malawi–Mozambique

• • 1964 Malawi becomes independent, border between Malawi and Portugal

Mali–Niger

• • 1960 Independence for Mali and Niger

Malawi–Tanzania

• • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar and the independence of Malawi

Malawi–Zambia

• • 1964 Malawi and Zambia becomes independent

Mauritania–Senegal

• • 1960 Independence for Mauritania and Senegal

Morocco–Spain

• Nador - Melilla
  • 1894 borders between Morocco and Melilla were fixed.
• Tanger - Ceuta
  • 17th century.

Mozambique–South Africa

• • 1931 South Africa becomes independent, border between South Africa and Portugal
  • 1975 Mozambique becomes independent

Mozambique–Swaziland

• • 1830s, Swaziland is moved up north in order to reduce the pressure from the Zulus, border between Swaziland and Portugal
  • 1975 Mozambique becomes independent

Mozambique–Tanzania

• • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar, border between Tanzania and Portugal
  • Mozambique becomes independent

Mozambique–Zambia

• • 1964 Zambia becomes independent, border between Zambia and Portugal
  • 1975 Mozambique becomes independent

Mozambique–Zimbabwe

• • 1975 Mozambique becomes independent, border between Mozambique and Rhodesia
  • 1980 Zimbabwe becomes independent

Namibia–Zambia

• • 1964 Zambia becomes independent, border between Zambia and South Africa
  • 1990 Namibia becomes independent

Namibia–South Africa

• • 1990 Namibia becomes independent from South Africa

Niger–Nigeria

• • 1960 Independence for Niger and Nigeria

Rwanda–Tanzania

• • 2nd Millennium, Establishment of Rwanda, border of Rwanda
  • 1962 Rwanda becomes independent, border between Rwanda and Tanganyika
  • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar

Rwanda–Uganda

• • 2nd Millennium, Establishment of Rwanda, border of Rwanda
  • 1962 Independence of Rwanda and Uganda

Sudan–Uganda

• • 1956 Sudanese independence from the United Kingdom and Egypt, border between Sudan and the United Kingdom
  • 1962 Uganda becomes independent

South Africa–Swaziland

• • 1830s, Swaziland is moved up north in order to reduce the pressure from the Zulus, border of Swaziland
  • 1931 South Africa becomes independent, border between South Africa and the United Kingdom
  • 1968 Swaziland becomes independent

South Africa–Zimbabwe

• • 1931 South Africa becomes independent, border between South Africa and the United Kingdom
  • 1980 Zimbabwe becomes independent

Tanzania–Uganda

• • 1962 Uganda becomes independent, border between Uganda and Tanganyika
  • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar

Tanzania–Zambia

• • 1964 Establishment of Tanzania after a merger between Tanganyika and Zanzibar and the independence of Zambia

Zambia–Zimbabwe

• • 1964 Zambia becomes independent, border between Zambia and the United Kingdom
  • 1980 Zimbabwe becomes independent

North America

Belize–Guatemala

• • 1840 Guatemala becomes independent, border between Guatemala and the United Kingdom
  • 1981 Belize becomes independent

Belize–Mexico

• • 1821 Mexico becomes independent, border between Mexico and the United Kingdom
  • 1981 Belize becomes independent

Canada–United States

• Saint John–Bangor
  • 1783 At the Treaty of Paris, border between the United States and Great Britain
• Edmundston–Presque Isle
  • 1842 At the Webster–Ashburton Treaty, border between the United States and the United Kingdom
• From Montréal–Boston to Thunder Bay–Minneapolis
  • 1783 At the Treaty of Paris, border between the United States and Great Britain
• From Winnipeg–Grand Forks to Calgary–Great Falls
  • 1818 At the Treaty of 1818, border between the United States and the United Kingdom
• Vancouver–Seattle
  • 1846 At the Oregon Treaty, border between the United States and the United Kingdom
• Whitehorse–Juneau
  • 1903 At the Hay–Herbert Treaty, border between the United States and the British Empire
• From Whitehorse–Anchorage to Inuvik–Prudhoe Bay
  • 1867 Alaska Purchase, border between the United States and the United Kingdom

Costa–Rica-Panama

• • 1838 Costa Rica becomes independent, border between Colombia and Costa Rica
  • 1903 Panama becomes independent

Costa Rica–Nicaragua

• • 1838 Costa Rica and Nicaragua become independent

Dominican Republic–Haiti

• • 1804 Haiti becomes independent from France, border between Haiti and France
  • 1821/1844 The Dominican Republic becomes independent from Haiti

El Salvador–Guatemala

• • 1840 El Salvador and Guatemala become independent

El Salvador–Honduras

• • 1839 Honduras becomes independent from the Federal Republic of Central America, border between Honduras and the Federal Republic of Central America
  • 1840 El Salvador established after the dissolution of the Federal Republic of Central America

France–Netherlands

• • 1648 France and the Netherlands divide Saint Martin.

Guatemala–Honduras

• • 1839 Honduras becomes independent from the Federal Republic of Central America, border between Honduras and the Federal Republic of Central America

Guatemala–Mexico

• • 1821 Mexico becomes independent, border between Mexico and the Federal Republic of Central America
  • 1840 Guatemala becomes independent

Honduras–Nicaragua

• • 1838 Nicaragua becomes independent from the Federal Republic of Central America, border between Nicaragua and the Federal Republic of Central America
  • 1839 Honduras becomes independent

Mexico–United States

• From Matamoros–Corpus Christi to Juárez–El Paso
  • 1848 At the Treaty of Guadalupe Hidalgo
• Hermosillo–Phoenix
  • 1853 Gadsden Purchase
• Tijuana–San Diego
  • 1848 At the Treaty of Guadalupe Hidalgo

South America

Argentina–Brazil

• Puerto Iguazú–Foz do Iguaçu
  • 1814 Misiones is claimed by Argentina, border between Argentina and Portugal
• Posadas–Pato Branco
  • 1927 Border between Argentina and Brazil is settled
• Posadas–Porto Alegre
  • 1814 Misiones is claimed by Argentina, border between Argentina and Portugal
• Corrientes–Santa Maria
  • 1820 After the division of the territory of the Liga Federal, border between the United Provinces of South America (Argentina) and Portugal

Argentina–Bolivia

• • 1825 Bolivian independence from the United Provinces of South America
  • 1925 Final border treaty

Argentina–Chile

• Salta–Antofagasta
  • 1884 Chile conquers the Bolivian Antofagasta Region
  • 1899 Border settled
• Mendoza–Santiago de Chile
  • 1810 The United Provinces of South America (Argentina) becomes independent, border between Argentina and Spain
  • 1818 Chile becomes independent with help from Argentina
• From Comodoro Rivadavia–Coihaique to Ushuaia–Punta Arenas
  • 1881 Boundary treaty of 1881 between Chile and Argentina

Argentina–Paraguay

• • 1870 Border established after the Paraguayan War

Argentina–Uruguay

• • 1820 Liga Federal is dissolved and the United Provinces of South America annexes the western provinces, creating today's border
  • 1821 The remainder of Liga Federal is annexed by the United Kingdom of Portugal, Brazil and the Algarves
  • 1825 Uruguay declares independence
  • 1828 Uruguayan independence is recognized

Bolivia–Brazil

• La Paz–Rio Branco
  • 1903 Treaty of Petropolis, Bolivia cedes Acre to Brazil
• Riberalta–Bom Comérico
  • 1867 Bolivia cells northern Acre to Brazil
• La Paz–Porto Velho
  • 1822 Brazilian independence, border between Brazil and Spain
  • 1825 Bolivian independence
• Santa Cruz–Cuiabá
  • 1867 Bolivia cells parts of eastern Bolivia to Brazil
  • 1927 Final border treaty

Bolivia–Chile

• Julaca–Antofagasta
  • 1884 Chile conquers the Bolivian Antofagasta Region
• La Paz–Arica
  • 1825 Bolivian independence, border between Bolivia and Peru
  • 1880 Arica is conquered by Chile

Bolivia–Paraguay

• • 1938 Chaco War ends with a truce, the current border created
  • 2009 A final treaty is signed to clearly mark the border

Bolivia–Peru

• La Paz–Arequipa
  • 1824 Spanish defeated in Peru, border between Peru and Spain
  • 1825 Bolivian independence
• Riberalta–Cuzco
  • 1909 Border settled

Brazil–Colombia

• • 1907 Treaty of Bogotá, Brazil and Colombia agree on most of the border
  • 1928 The Tratado de Límites y Navegación Fluvial is signed, settling the border

Brazil–France

• • 1713 The Treaty of Utrecht creates a border between France and Portugal.
  • 1822 Brazil obtains independence

Brazil–Guyana

• Santarém–Georgetown
  • 1822 Brazilian independence, border between Brazil and the United Kingdom
  • 1966 Guyana becomes independent
• Boa Vista–Georgetown
  • 1904 Italy arbiters in a border dispute, border between Brazil and the British Empire
  • 1966 Guyana becomes independent
• Boa Vista–Imbaimadai
  • 1822 Brazilian independence, border between Brazil and the United Kingdom
  • 1966 Guyana becomes independent

Brazil–Paraguay

• Campo Grande–Forte Olimpo
  • 1870 Paraguay is defeated in the Paraguayan War and loses territory to Brazil, border between Brazil and the disputed Chaco area, claimed by both Bolivia and Paraguay
  • 1935 After the Chaco War
• Campo Grande–Asunción
  • 1870 Paraguay is defeated in the Paraguayan War and loses territory to Brazil
• Cascavel–Asunción
  • 1811 Paraguay becomes independent, border between Paraguay and Portugal
  • 1822 Brazilian independence

Brazil–Peru

• Eirunepé–Iquitos
  • 1851 Border agreement
• Rio Branco–Lima
  • 1909 Border agreement

Brazil–Suriname

• • 1906 Border between Brazil and the Netherlands defined in the Treaty of Limits
  • 1975 Suriname obtains independence

Brazil–Uruguay

• • 1825 Uruguay declares independence
  • 1828 Uruguay's independence is accepted by Brazil

Brazil–Venezuela

• • 1777 First Treaty of San Ildefonso is signed designating the border between Spain and Portugal
  • 1819 Gran Colombia becomes independent
  • 1822 Brazilian becomes independent
  • 1830 Venezuela becomes independent

Colombia–Ecuador

• • 1830 Ecuador becomes independent from Colombia
  • 1916 Final border treaty

Colombia–Panama

• • 1903 Panama becomes independent from Colombia

Colombia–Peru

• • 1922 Border agreement between Colombia and Peru, territory disputed with Ecuador
  • 1942 Ecuador loses a war versus Peru

Colombia–Venezuela

• • 1830 Venezuela becomes independent from Colombia

Ecuador–Peru

• Quito–Iquitos
  • 1942 After the Ecuadorian–Peruvian War, disputed
• Cuenca–Sullana
  • 1830 Ecuador becomes independent, disputed

France–Suriname

• • 17th century, border between France and the Netherlands.
  • 1975 Surinamese independence.

Guyana–Suriname

• Georgetown–Paramaribo
  • 1966 Guyana becomes independent, border between Guyana and the Netherlands
  • 1975 Suriname becomes independent
• Joli–Majoli
  • 1966 Guyana becomes independent, border between Guyana and the Netherlands
  • 1975 Suriname becomes independent, disputed

Guyana–Venezuela

• • 1899 Border settled between Venezuela and the British Empire
  • 1966 Guyana becomes independent, border disputed

Borders of Territories with special status or unrecognized and minimally recognized states

Hong Kong–China

• Boundary Street
  • 1860 China under Ch'ing Dynasty ceded Kowloon Peninsula to the British crown colony of Hong Kong
• Sham Chun River, Sha Tau Kok River and Pak Kung Au
  • 1898 China under Ch'ing Dynasty leased the New Territories to the United Kingdom until 1997, and was added to the crown colony of Hong Kong
• Dongjiaotou
  • 2007 The Central People's Government of the People's Republic of China leased an area in Dongjiaotou for Hong Kong, one of PRC's special administrative regions, to establish a boundary checkpoint across the Deep Bay / Shenzhen Bay.

Algeria–Western Sahara

• • 1962 Algeria becomes independent, border between Algeria and Spain
  • 1975 Western Sahara becomes independent and is mostly occupied by Morocco

Mauritania–Western Sahara

• • 1960 Mauritania becomes independent, border between Mauritania and Spain
  • 1975 Western Sahara becomes independent and is mostly occupied by Morocco

Morocco–Western Sahara

• • 1884 Berlin Conference, Spain gains Western Sahara and subsequently occupies the territory, border between Morocco and Spain

Egypt–Palestinian Territories

• • 1841 The United Kingdom forces Egypt to retreat from the Levant, border between Egypt and the Ottoman Empire
  • 2005 Israel evacuates the Gaza Strip

Israel–Palestinian Territories

• From Nazareth–Jenin to Beersheba–Hebron
  • 1948 Cease fire line in the war between Israel and the Arabs, border between Israel and Jordan
• Beersheba–Gaza
  • 1948 Cease fire line in the war between Israel and the Arabs, border between Israel and Egypt
  • 2005 Israel evacuates the Gaza Strip

Jordan–Palestinian Territories

• • 1967 Israel conquers the West Bank, border between Jordan and Israel

References