World War One Timeline

28th June 1914

Archduke Franz Ferdinand heir to the throne of Austria is assassinated in Sarajevo by Serbian Gavrilo Princip

28th July 1914

Austria-Hungary declares war on Serbia.

1st August 1914

Germany declare war on Russia to protect Austria-Hungary because Russia prepare their troops to help Allie Serbia.

3rd August 1914

Germany declare war on France because they prepare troops to help Russia. Germany ask permission to march through Belgium to get to France. Belgium refuse.

4th August 1914

Germany march through Belgium anyway and Britain protest. Germany ignore so Britain declare war on Germany.

5th August 1914

Montenegro declare war on Germany

6th August 1914

Austria-Hungary declare war on Russia and then Serbia declare war on Germany

Japan declares war on Austria-Hungary.

Japan declares war on Germany.

August 11 France declares war on Austria-Hungary

The United Kingdom declares war on Austria-Hungary

The British army arrives in France.

7th August 1914

11th August 1914

12th August 1914

23rd August 1914

25th August 1914

28th August 1914

In some parts of the Western Front, an unofficial Christmas truce is observed between German and British forces.

24th-25th December 1914

Austria Hungary declare war on Belgium

16th April 1915

The Triple Entente sign a treaty with Italy

7th May 1915

The Lusitania is sunk by a German U-boat

23rd May 1915

Italy declare war on Austria-Hungary

Bulgaria declares war on Serbia

14th October 1915

I declare war on you!

I declare war on you!