World War I
war:conflict:world_war_iWorld War I (1914–1918); Allied Powers vs Central Powers; trench warfare; Verdun, Somme; poison gas; 20M dead; Russian Revolution; Armistice 11/11/1918; Treaty of Versailles.
World War I (1914–1918); Allied Powers vs Central Powers; trench warfare; Verdun, Somme; poison gas; 20M dead; Russian Revolution; Armistice 11/11/1918; Treaty of Versailles.