World War 1

Assassination

Jun 28, 1914

Archduke Franz Ferdinand of Austria gets assassinated.

Austria-Hungary

Jul 28, 1914

After the assassination of Archduke Franz Ferdinand, Austria-Hungary delcares war on Serbia

Russia

Aug 1, 1914

Germany declares war on Russia

Belgium

Aug 3, 1914

Germany invades Belgium

France

Aug 3, 1914

France and Germany declare war on each other

Germany

Aug 4, 1914

Germany declares war on many countries of Europe

Great Britain

Aug 5, 1914

Great Britain declares war on Germany

Ottoman Empire

Nov 14, 1914

The Ottoman Empire declares a holy war on behalf of the Ottoman government

Italy

May 23, 1915

Italy declares war on Austria-Hungary

Bulgaria

Oct 11, 1915

Bulgaria enters WW1

Portugal

Mar 9, 1916

Portugal declares war on Germany

Romania

Apr 27, 1916

Romania declares war on Austria-Hungary, formally entering WW1.

Greece

Jul 2, 1917

Greece declares war on Central Powers