Austro-Hungarian Civil Ensign
Österreichisch-Ungarische Monarchie
Osztrák–Magyar Monarchia
Declared war at Serbia on: 28 July, 1914
Deutsche Kolonien und Protektorate
Joined the war on: 1 August, 1914 - Colonies and Protectorates of German Empire
Ottoman Flag
دولت عليه عثمانیه
Russia declared war at the Ottoman Empire on: 29 October, 1914
Królestwo Polskie
Königreich Polen
Joined the war on: 5 November, 1916 - Puppet State of German Empire
Königreich Litauen
Herzogtum Kurland und Semgallen
Joined the war on: 8 March, 1918 - Puppet State of German Empire
Беларуская Народная Рэспубліка
Joined the war on: 9 March, 1918 - Puppet State of German Empire
Крымское краевое правительство
Joined the war on: 25 June, 1918 - Puppet State of German Empire
Balti Hertsogiriik
Apvienotā Baltijas hercogiste
Vereinigtes Baltisches Herzogtum
Joined the war on: 22 September, 1918 - Puppet State of German Empire
Die im Reichsrat vertretenen Königreiche und Länder
Joined the war on: 28 July, 1914 - Part of Austro-Hungarian Monarchy
Flag of Kingdom of Hungary
Flag of Kingdom of Croatia-Slavonia
A Magyar Szent Korona Országai Zemlje krune svetog Stjepana
Joined the war on: 28 July, 1914 - Part of Austro-Hungarian Monarchy
Kondominij Bosne i Hercegovine
Kondominium Bosnien und Herzegowina
Bosznia-Hercegovinai Kondomínium
Joined the war on: 28 July, 1914 - Part of Austro-Hungarian Monarchy
Zuid-Afrikaansche Republiek
Fight agaisn't the British Empire on: September, 1914
Dhaqdhaqaaqii Daraawiishta
Fight agaisn't the British Empire on: 11 November, 1914
إمارة جبل شمر
Client State of Ottoman Empire: 29 October, 1914
نیروهای مقاومت ایران
Was formed on: 17 November, 1914
سلطنة دارفور
Fight agaisn't the British Empire on: 1 April, 1915
guérillas touaregs
Began the Kaocen Revolt on 1 December, 1915
Suomen kuningaskunta
Supposedly have joined the war on: May, 1918
Горская Республика
Къушъхьэ Республик
Ламанхойн Республикa
Сувун Республика
Declared independence from Russian Empire on: 11 May, 1918
Notes: Because Germany had to much colonies during the Great War, I decided to create a separated site just for them.