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World War I
WW1 TitlePicture For Wikipedia Article.jpg
Clockwise from top: trenches on the Western Front; a British Mark IV Tank crossing a trench; Royal Navy battleship HMS Irresistible sinking after striking a mine at the Battle of the Dardanelles; a Vickers machine gun crew with gas masks, and German Albatros D.III biplanes
Date 28 July 1914 – 11 November 1918 (Armistice)
Treaty of Versailles signed 28 June 1919
(4 years and 11 months)
Treaty of Saint-Germain-en-Laye signed 10 September 1919
Treaty of Neuilly-sur-Seine signed 27 November 1919
Treaty of Trianon signed 4 June 1920
Treaty of Sèvres signed 10 August 1920
Location Europe, Africa, the Middle East, the Pacific Islands, China and off the coast of South and North America
Result Allied victory
End of the German, Russian, Ottoman, and Austro-Hungarian empires
Formation of new countries in Europe and the Middle East
Transfer of German colonies and regions of the former Ottoman Empire to other powers
Establishment of the League of Nations. (more...)
Belligerents
Allied (Entente) Powers France British Empire Australia Canada India Newfoundland New Zealand South Africa United Kingdom Russia (1914–17) Italy (1915–18) United States (1917–18) Serbia Romania (1916–18) Japan Belgium Greece (1917–18) Portugal (1916–18)
...and others
Central Powers German Empire Baden Bavaria Prussia Saxony Württemberg Austria-Hungary Ottoman Empire Bulgaria (1915–18)
Co-belligerents
Jabal Shammar
...and others
Commanders and leaders
French Third Republic Raymond Poincaré
British Empire George V
Russian Empire Nicholas II
Kingdom of Italy Victor Emmanuel III
United States Woodrow Wilson
Romania Ferdinand
Empire of Japan Taishō
Kingdom of Serbia Peter I
Belgium Albert I
...and others
German Empire Wilhelm II
Austria-Hungary Franz Joseph I (1914–16)