World War 1 By damo94 May 20, 1882 germany, austria-hungary and italy form the triple alliance germany, austria-hungary and italy form the triple alliance Aug 31, 1907 britain, france and russia form the triple entente Jul 28, 1914 Austria declares war on serbia Aug 1, 1914 germany declares war on serbia's ally, russia Aug 3, 1914 germany declares war on russia's ally france and invades belgium Aug 4, 1914 britain declares war on germany Aug 10, 1914 recruiting begins for the AIF Sep 5, 1914 french and british forces halt the germans and attack in belgium and france Sep 10, 1914 british and french forces go to war with germany again Sep 15, 1914 trench warfare begins in western europe Apr 25, 1915 anzacs land in gallipoli Dec 7, 1915 decision made to withdraw from gallipoli Jan 1, 1916 AIF joins the fight against Germany on the Western Front. Jan 1, 1916 Australian Light Horse remain in Egypt to fight Turkish forces Jan 1, 1916 Big offensive on the Western Front in the Somme Valley in France Jan 1, 1916 First Conscription Referendum in Australia. Jan 1, 1917 The USA enters World War I Jan 1, 1917 Revolution in Russia leads to Russia withdrawing from the war