1920

1609-1924 · Year 312 of 316

American Indian Wars

1849-1924 · Year 72 of 76

Apache Wars

The Apache Wars were a series of armed conflicts between the United States Army and various Apache tribal confederations fought in the southwest between 1849 and 1886, though…

1898-1934 · Year 23 of 37

Banana Wars

The Banana Wars were a series of conflicts that consisted of military occupation, police action, and intervention by the United States in Central America and the Caribbean…

1907-1937 · Year 14 of 31

French conquest of Morocco

The French conquest of Morocco began with the French Republic occupying the city of Oujda on 29 March 1907. The French launched campaigns against the Sultanate of Morocco which…

1910-1920 · Closing year

Mexican Revolution

The Mexican Revolution was an extended sequence of armed regional conflicts in Mexico from 20 November 1910 to 1 December 1920. It has been called "the defining event of modern…

1911-1927 · Year 10 of 17

Rif War

The Rif War was an armed conflict fought from 1921 to 1926 between Spain and Berber tribes of the mountainous Rif region of northern Morocco.

1914-1945 · Year 7 of 32

Second Thirty Years' War

"Second Thirty Years' War" is a periodization scheme sometimes used to encompass the wars in Europe from 1914 to 1945. Just as the Thirty Years' War of 1618 to 1648 was not a…

1914-1921 · Year 7 of 8

Zaian War

The Zaian War was fought between France and the Zaian Confederation of Berber tribes in Morocco between 1914 and 1921 during the French conquest of Morocco. Morocco had become a…

1915-1920 · Closing year

Jungle Movement of Gilan

The Jangal Movement was a rebellion against the monarchist central government of the Sublime State of Iran in Gilan, which lasted from 1915 to 1921.

1917-1922 · Year 4 of 6

Russian Civil War

The Russian Civil War was a multi-party civil war in the former Russian Empire, lasting from 1917 to 1922, sparked by the overthrowing of the Russian Provisional Government in…

1917-1944 · Year 4 of 28

Soviet-Finnish wars

1917-1921 · Year 4 of 5

Ukrainian War of Independence

The Ukrainian War of Independence, also referred to as the Ukrainian–Soviet War in Ukraine, lasted from March 1917 to November 1921 and was part of the wider Russian Civil War.…

1917-1921 · Year 4 of 5

Ukrainian–Soviet War

The Ukrainian–Soviet War is the term commonly used in post-Soviet Ukraine for the events taking place between 1917 and 1921, nowadays regarded essentially as a war between the…

1918-1920 · Closing year

Armenian–Azerbaijani War

The Armenian-Azerbaijani war (1918–1920) was a conflict that took place in the South Caucasus in regions with a mixed Armenian-Azerbaijani population, broadly encompassing what…

1918-1920 · Closing year

Estonian War of Independence

The Estonian War of Independence, also known as the Estonian Liberation War, and War of Freedom in Estonia, was a defensive campaign of the Estonian Army and its allies, most…

1918-1921 · Year 3 of 4

Franco-Turkish War

The Franco–Turkish War, known as the Cilicia Campaign in France and as the Southern Front of the Turkish War of Independence in Turkey, was a series of conflicts fought between…

1918-1920 · Closing year

Georgian–Ossetian conflict (1918–1920)

The Georgian–Ossetian conflict of 1918–1920 were a series of uprisings, which took place in the Ossetian-inhabited areas of what is now South Ossetia, a breakaway republic in…

1918-1920 · Closing year

Hungarian–Romanian War

The Hungarian–Romanian War was fought between Hungary and Romania from 13 November 1918 to 3 August 1919. The conflict had a complex background, with often contradictory…

1919-1922 · Year 2 of 4

Greco-Turkish War

The Greco-Turkish War of 1919–1922 was fought between Greece and the Turkish National Movement during the partitioning of the Ottoman Empire in the aftermath of World War I,…

1919-1921 · Year 2 of 3

Irish War of Independence

The Irish War of Independence, also known as the Anglo-Irish War, was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army and British forces:…

1919-1920 · Closing year

Kuwait–Nejd Border War

The Kuwait–Najd War erupted in the aftermath of World War I. The war occurred due to Ibn Saud of Najd's desire to annex Kuwait. The sharpened conflict between Kuwait and Najd led…

1919-1920 · Closing year

Polish–Lithuanian War

The Polish–Lithuanian War was an undeclared war fought in the aftermath of World War I between newly independent Lithuania and Poland, with fighting mainly in the Vilnius and…

1919-1921 · Year 2 of 3

Polish–Soviet War

The Polish–Soviet War was fought primarily between the Second Polish Republic and the Russian Soviet Federative Socialist Republic, following World War I and the Russian…

1919-1923 · Year 2 of 5

Turkish War of Independence

The Turkish War of Independence was a series of military campaigns and a revolution waged by the Turkish National Movement, after the Ottoman Empire was occupied and partitioned…

1920 · Sole year

Franco-Syrian War

The Franco-Syrian War took place during 1920 between France and the Hashemite rulers of the newly established Arab Kingdom of Syria. During a series of engagements, which…

1920 · Sole year

Turkish–Armenian War

The Turkish invasion of Armenia, also known as the Turkish–Armenian War and known in Turkey as the Eastern Front of the Turkish War of Independence, was a conflict fought between…

1920 · Sole year

Vlora War

The Vlora War or Vlora crisis was a military conflict in the Vlorë region of Albania between the Kingdom of Italy and Albanian nationalists. Vlorë, occupied by Italy since late…