World War I

World War I 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 Location Europe, Africa, the Middle East, the Pacific Islands, China and off the coast of South 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  Russian Empire (1914–17)  Serbia  Italy (1915–18)  Japan  Romania (1916–18)  Belgium  Greece (1917–18) Portugal (1916–18) Montenegro (1914–16)  Brazil (1917-18)  United States (1917–18) and others Central Powers  German Empire  Austria-Hungary  Ottoman Empire  Bulgaria (1915–18) Commanders and leaders Leaders and commanders Raymond Poincaré Georges Clemenceau Ferdinand Foch H. H. Asquith David Lloyd George Nicholas II Antonio Salandra Vittorio Orlando Woodrow Wilson and others Leaders and commanders Wilhelm II Paul von Hindenburg Erich Ludendorff Franz Joseph I Karl I İsmail Enver Ferdinand I and others Strength Allies[1] 12,000,000 8,841,541[2] 8,660,000[3] 5,093,140 4,743,826 1,234,000 800,000 707,343 380,000 250,000 200,000 50,000 Total:42,959,850 Central Powers[4] 13,250,000 7,800,000 2,998,321 1,200,000 Total: 25,248,321 Casualties and losses Military dead: 5,525,000 Military wounded: 12,831,500 Military missing: 4,121,000 Total: 22,477,500 KIA, WIA or MIA ...further details. Military dead: 4,386,000 Military wounded: 8,388,000 Military missing: 3,629,000 Total: 16,403,000 KIA, WIA or MIA ...further details.

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