First World War

assessination of Archduke Francis Ferdinand

Jun 28, 1914

Austrian ultimatum to serbia

Jul 23, 1914

austria declares war on serbia

Jul 28, 1914

austria declares war on serbia

Jul 29, 1914

russia mobilizes

Jul 29, 1914

german ultimatum to russia

Jul 31, 1914

germany declares war on russia

Aug 1, 1914

germany declares war on france

Aug 3, 1914

german troops invade belgium

Aug 4, 1914

great britain declared war on germany

Aug 4, 1914