World War 1

June 28, 1914 - August 3, 1914

Main

Assasination of Archduke Franz Ferdinand

June 28, 1914

On June 28, 1914 Archduke Franz Ferdinand and his wife were assassinated by Gavrilo Princip. In July Austrian investigators linked the assassination to a terrorist group known as the Black Hand. This event sets in motion World War I.

Austrians Send Ultimatum to Serbia

July 23, 1914

The Austrians issued an ultimatum to the Serbian government. The Serbian government accepted all the terms except one, which infringed on its sovereignty. The ultimatum demanded that Austrian officials take part in any Serbian investigations of persons found in Serbian territory connected to the assassination of Archduke Franz Ferdinand.

Austrians Declare War on Serbia

July 28, 1914

After the Serbian government finds the Austrian's ultimatum partially unacceptable, Austria-Hungary declared war on Serbia

Russian Defend Serbia

July 29, 1914

On 29 July the Russian government mobilized its troops to defend its Serbian ally and itself from Austria.

Germany Sends Ultamatum to France

July 31, 1914

Another ultimatum was sent to France demanding to know what France's intentions were in case Germany went to war with Russia. The French never answered Germany's ultimatum.

Germans Send Ultimatum To Russia

July 31, 1914

Germany sends an ultimatum to Russia in which they ask Russian army to cease its mobilization immediately. The Russians replied with the answer "impossible."

Germany Declares War on Russia

August 1, 1914

After the Russian's respond to Germany's ultimatum with "impossible" the Germans decide to declare war on Russia.

Germany Invades Belgium

August 3, 1914

German troops invade Belgium in accordance with the Schlieffen plan. The Germans failed to recognize Belgium's neutrality.

Germany Declares War On France

August 3, 1914

After waiting an extra two days after declaring war on Russia, the Germans no longer can wait for France's reply. Therefore Germany declares war on France.