1914 June 28th Francis Ferdinand assassinated at Sarajevo July 5th Kaiser William II promised German support for Austria against Serbia July 28th Austria declared war on Serbia August 1st Germany declared war on Russia August 3rd Germany declared war on France and invaded Belgium. Germany had to implement the Schlieffen Plan. August 4th Britain declared war on Germany August 23rd The BEF started its retreat from Mons. Germany invaded France. August 26th Russian army defeated at Tannenburg and Masurian Lakes. September 6th Battle of the Marne started October 18th First Battle of Ypres October 29th Turkey entered the war on Germany’s side. Trench warfare started to dominate the Western Front.…