In a secret agreement signed on 26 April in London, Italy agreed to leave the Triple Alliance, join the forces of the Triple Entente, and declare war on Austria-Hungary and Germany.
Germany, Austria-Hungary and Italy formed the Triple Alliance.
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.
The National Assembly of Romanians of Transylvania and Hungary declared the unification of Transylvania and the Kingdom of Romania.
The 28th June saw both the trigger and the definitive end of the First World War.
On the 23rd May 1915, Italy entered the First World War on the side of the Triple Entente and declared war on Austria-Hungary.
Keen to consolidate the newly-united Germany, Chancellor Otto von Bismarck turned to diplomacy in an attempt to ensure the status quo in Europe.
Germany and Russia signed the secret Reinsurance Treaty that ensured they would each remain neutral if the other went to war with a third European power.
The Bosnian Crisis came to end with Serbia’s acceptance of the annexation of Bosnia and Herzegovina by Austria-Hungary.
On the 3rd March 1918 the Treaty of Brest-Litovsk was signed between Russia and the Central Powers.
28th June 2015
11th November 2020
11th November 2020
9th November 2019
