First World War

The Austro-Hungarian ultimatum to Serbia, 23rd July 1914
On the 23rd July 1914, Austria-Hungary issued an ultimatum to Serbia specifically designed to be rejected and lead to war between the two countries.

Austria-Hungary and the declaration of war
Exactly one month after the assassination of Archduke Franz Ferdinand, Austria-Hungary declared war on Serbia.

The Treaty of London: Belgian independence and the First World War
The Treaty of London recognised and guaranteed the independence and neutrality of Belgium.

The MAIN causes of the First World War (video)
This video is taken from BBC Bitesize revision, and it gives an excellent overview of the key long-term causes of the war.

What if the Schlieffen Plan had worked?
This documentary examines the counter-factual debate of what would have happened if the Schlieffen Plan had worked. It opens with a review of the ‘real’ events, and then speaks to various experts to find out their opinion on how things could have been different.