declarations of war
Tag
(44)1914
July
August
- 04
- Key eventBritain declares war on GermanyAt 11 p.m. London time on 4 August 1914 the ultimatum expired. Britain and its whole empire found themselves at war with Germany.
- Key eventGermany declares war on BelgiumOn 4 August 1914 Germany announced to Belgium that it would use force and entered its territory. The chancellor admitted he was breaking international law.
- 06
- Key eventAustria-Hungary declares war on RussiaOn 6 August 1914 the Austro-Hungarian ambassador in St Petersburg handed over the declaration of war. The monarchy's main front shifted to Galicia.
- Key eventSerbia declares war on GermanyOn 6 August 1914 Serbia declared war on Germany, ally of Austria-Hungary. The two states had no common border, but the declaration was a political statement.
November
- 02
- Key eventRussia declares war on TurkeyOn 2 November 1914 Nicholas II issued a manifesto of war with Turkey. The Tsar said it would open Russia's way to its Black Sea aims, that is, the Straits.
- Serbia at war with TurkeyOn 2 November 1914 Serbia, Russia's ally, found itself at war with the Ottoman Empire. The two countries had no common border and did not fight each other.
1915
May
June
August
October
- 15
- Britain declares war on BulgariaOn 15 October 1915 the Foreign Office announced that from 10 p.m. Britain was at war with Bulgaria, an ally of the Central Powers fighting Serbia.
- Montenegro declares war on BulgariaOn 15 October 1915 Montenegro declared a state of war with Bulgaria. King Nicholas I's small monarchy stood by Serbia, now attacked from two sides.
1916
March
August
- 28
- Key eventGermany declares war on RomaniaOn 28 August 1916 Germany declared war on Romania, a day after it turned against Austria-Hungary. The surprise at Pless cost Falkenhayn his post.
- Key eventItaly declares war on GermanyOn 27 August 1916 Sonnino sent a declaration through the Swiss government that from 28 August Italy considered itself at war with Germany.