Assassination of Franz Ferdinand
June 28 1914
Austria-Hungary makes demands on Serbia for retribution. Serbia does not meet demands.
July 23 1914
Austria-Hungary declares war on Serbia. Russia begins mobilizing its troops.
July 28 1914
Germany declares war on Russia.
August 1 1914
Germany declares war on France as part of the Schlieffen Plan.
August 3 1914
Germany invades Belgium. Britain declares war on Germany.
August 4 1914
The Battle of Tannenberg is fought between Germany and Russia. The Germans defeat the Russian Second Army.
August 23 1914 - August 30 1914
The advancing German army is stopped before Paris by the British and French at the First Battle of the Marne. The Germans dig in and four years of trench warfare begins.
September 5 1914 - September 12 1914
The Allies defeat the Germans at the First Battle of Ypres.
October 19, 1914 - November 22, 1914
The British begin a naval blockade of Germany.
November 2, 1914