WW1 By joshua.96 Jun 28, 1914 Francis Ferdinand assassinated at Sarajevo Jul 5, 1914 Kaiser William II promised German support for Austria against Serbia Jul 28, 1914 Austria declared war on Serbia Period: Jul 28, 1914 to Nov 11, 1918 Key Events In WW1 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 23, 1914 The BEF started its retreat from Mons. Germany invaded France. Aug 26, 1914 Russian army defeated at Tannenburg and Masurian Lakes. 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. Apr 25, 1915 Allied troops landed in Gallipoli May 7, 1915 The “Lusitania” was sunk by a German U-boat Dec 19, 1915 The Allies started the evacuation of Gallipoli Feb 21, 1916 Start of the Battle of Verdun Jul 1, 1916 Start of the Battle of the Somme Sep 15, 1916 First use of tanks at the Somme. Dec 7, 1916 Lloyd George becomes British Prime Minister Feb 1, 1917 Germany’s unrestricted submarine warfare campaign started Apr 6, 1917 USA declared war on Germany Oct 24, 1917 Battle of Caporetto – the Italian Army was heavily defeated Dec 5, 1917 Armistice between Germany and Russia signed Mar 29, 1918 Marshall Foch was appointed Allied Commander on the Western Front Jul 15, 1918 Second Battle of the Marne started. The start of the collapse of the German army Sep 19, 1918 Turkish forces collapsed at Megiddo Nov 9, 1918 Kaiser William II abdicated Nov 11, 1918 Germany signed an armistice with the Allies – the official date of the end of World War One.
