World War 1 By Brianna U Jun 28, 1914 Francis Ferdinand assassinated at Sarajevo Period: Jun 28, 1914 to Nov 11, 1918 World War 1 Jul 5, 1914 Kaiser William II promised German support for Austria against Serbia Jul 28, 1914 Austria declared war on Serbia Aug 1, 1914 Germany Declared War on Russia Aug 3, 1914 Germany declared war on France and invaded Belgium Germany had to implement the Schlieffen Plan. Aug 4, 1914 Britain declared war on Germany Aug 14, 1914 The BEF started its retreat from Mons. Germany invaded France. Aug 26, 1914 Russian army defeated at Tannenburg and Masurian Lakes. Sep 6, 1914 Battle of the Marne begins Sep 9, 1914 First Battle of the Masurian Lakes begins Oct 18, 1914 First Battle of Ypres Oct 29, 1914 Turkey entered the war on Germany’s side Trench warfare started to dominate the Western Front. Jan 19, 1915 The first Zeppelin raid on Britain took place Feb 19, 1915 Britain bombarded Turkish forts in the Dardanelles Apr 25, 1915 Allied troops landed in Gallipoli May 7, 1915 The “Lusitania” was sunk by a German U-boat May 23, 1915 Italy declared war on Germany and Austria Aug 5, 1915 The Germans captured Warsaw from the Russians Sep 25, 1915 Start of the Battle of Loos Dec 19, 1915 The Allies started the evacuation of Gallipoli Jan 27, 1916 Conscription introduced in Britain Feb 21, 1916 Start of the Battle of Verdun Apr 29, 1916 British forces surrendered to Turkish forces at Kut in Mesopotamia May 31, 1916 Battle of Jutland Jun 4, 1916 Start of the Brusilov Offensive Jul 1, 1916 Start of the Battle of the Somme Aug 10, 1916 End of the Brusilov Offensive Sep 15, 1916 First use en masse of tanks at the Somme Dec 7, 1916 Lloyd George becomes British Prime Minister Feb 1, 1917 Germany’s unrestricted submarine warfare campaign started Mar 21, 1917 Germany broke through on the Somme Mar 29, 1917 Germany broke through on the Somme Apr 6, 1917 USA declared war on Germany Apr 16, 1917 France launched an unsuccessful offensive on the Western Front Jul 31, 1917 Start of the Third Battle at Ypres Oct 24, 1917 Battle of Caporetto – the Italian Army was heavily defeated Nov 6, 1917 Britain launched a major offensive on the Western Front Nov 20, 1917 British tanks won a victory at Cambrai Dec 5, 1917 Armistice between Germany and Russia signed Dec 9, 1917 Britain captured Jerusalem from the Turks Mar 3, 1918 The Treaty of Brest-Litovsk was signed between Russia and Germany.
