World War I The War to End All Wars

Causes of WWI Germany and Austria-Hungary wanted to increase the size of their empires Each country was building up its supply of weapons Countries began to form alliances France, Russia and Great Britain formed the Triple Entente Germany, Italy and Austria-Hungary formed the Triple Alliance

Causes In 1914 Archduke Franz Ferdinand was assassinated in Sarajevo, Bosnia by Serbians. Because of this Austria-Hungary invades Serbia

Causes Russia aids Serbia, so Germany declares war on Russia. France declares war on Germany Germany attacks Belgium Great Britain enters the war to help France and Belgium

Causes The United States joins the war against Germany in 1917 which gives the Allied powers fresh troops and weapons World War ends in 1918, Allied Powers Win

Allied Powers Great Britain France Russia United States 1917 Italy 1915

Central Powers Germany Austria-Hungary Ottoman Empire Bulgaria

Results of World War I Treaty of Versailles – written by the Allied Powers Germany had to give up a territory to France, Great Britain, Belgium, Denmark and Poland

Results To prevent Germany from starting another war, the size of it’s army was reduced They were forbidden to have submarines and airplanes

Results Germany had to accept responsibility for starting the war They had to pay 33 million dollars in damage to the other nations Formation of the League of Nations

League of Nations It did not include every nation, the U.S. did not join Decisions required all nations to agree It could not form an army to enforce decisions

World Leaders in WWI Georges Clemenceau – France David Lloyd George – Great Britain Czar Nicholas II – Germany Woodrow Wilson – United States