World War I

Assasination of Franz Ferdinand

Jun 28, 1914

Archduke Franz Ferdinand heir to the throne of the Austro-Hungarian Empire, and his wife are assassinated in Sarajevo.

Austria Hungary declares war on Serbia

Jul 28, 1914

Emperor Franz Joseph of Austria-Hungary declares war on Serbia.

Germany Declares War

Aug 1, 1914

Germany declares war on Russia

Gemany Declares War

Aug 3, 1914

Germany declares war on France as part of the Schlieffen Plan

Germany, Belgium, Britain

Aug 4, 1914

Germany invades Belgium, Britain declares war on Germany

Ottoman Empire

Oct 13, 1914

Ottoman Empire enters the great war

Italy declares war

May 23, 1915

Italy declares war on Austria-Hungary

Bulgaria declares war

Oct 11, 1915

Bulgaria declares war on Serbia and fights with the central powers

Germany declares war

Mar 9, 1916

Germany declares war on Portugal

Romania Declares War

Apr 16, 1916

Romania declares war on the central powers

Greece declares war

Jul 2, 1917

Greece declares war on the central powers