Kaiser William II promises German support for Austria against Ser
Emperor Franz Joseph of Austria-Hungary declares war on Serbia and Russia
Russia begins to moblize her armed forces. Austia-Hungarian troops invade Serbia
Official outbreak of World War 1. Germany declares war on Russia
Germany declares war on France
The British Expeditionary force lands in France to assist the French and Belgians in stopping the German offensive
Russia invades East Prussia
U.S. President Wilson appeals for neutrality. the Canadian Parliament authorizes the raising of an expeditionary force to send overseas and constructs Valcartier Camp to give basic training to new recruits
27,000 French soldieers are killed on this single day in an offensive thrust to the east of Paris, towards the German borders
First Battle of the Marne begins
1st Battle of Ypres begins. The Canadian Expeditionary Force of 32,000 men lands at Plymouth, England, to prepare for fighting at the Front.
First German air raid on Britain
An unofficial Christmas truce is declared by soldiers along the Western Front