Trench Warfare By Bless Jun 28, 1914 Austria-Hungary declared war on Serbia. Austria-Hungary declared war on Serbia. Period: Jun 28, 1914 to Nov 11, 1918 Trench Warfare Period: Jun 28, 1914 to Nov 11, 1918 Trench Wardare Jul 31, 1914 Russia announced mobilization of army. Aug 1, 1914 Germany declared war on Russia. Aug 3, 1914 Germany declared war on France. Aug 4, 1914 Germany invaded Belgium, Britain declared war on Germany. Aug 6, 1914 Austria-Hungary declared war on Russia. Sep 15, 1914 First trenches of the western front were built. Dec 15, 1914 Unofficial Christmas Truce was announced. Feb 4, 1915 Germany blocked the sea using submarines. Feb 4, 1915 Germany blocked the sea using submarine Apr 25, 1915 Battle for Gallipoli was started. Apr 25, 1915 Battle for Gallipoli was started. May 23, 1915 Italy declared war on Germany. Aug 5, 1915 Warsaw was captured by Germany. Dec 28, 1915 Allies started evacuation of their troops from Gillipoli. May 31, 1916 Naval battle of Jutland was fought. Dec 18, 1916 Battle of Verdun was fought. Over 1 million casualties were reported Dec 31, 1916 Rasputin was murdered. Feb 1, 1917 Germany declared unrestricted submarine warfare. Mar 15, 1917 Russian Revolution. Apr 6, 1917 USA declared war on Germany. Apr 16, 1917 France launched unsuccessful offensive on Western front Jul 31, 1917 Battle of Ypres was started. Dec 5, 1917 Armistice between Russia and Germany was signed. Dec 9, 1917 Jerusalem was captured by Britain. Mar 18, 1918 Treaty of Brest-Litovsk was signed. Jul 15, 1918 Second Battle of Marne was started. Oct 28, 1918 Mutiny in German Army. Oct 30, 1918 Turkey signed armistice. Nov 9, 1918 Kaiser William II abdicated Nov 11, 1918 End of World War I.
