The Kingdom of Iraq ( ) was founded on 23 August 1921 under British administration following the defeat of the Ottoman Empire in the Mesopotamian campaign of WWI. Although a League of Nations mandate was awarded to Britain in 1920, the 1920 Iraqi revolt resulted in the scrapping of the original mandate plan in favor of a British administered semi-independent kingdom, under the Hashemite allies of Britain, via the Anglo-Iraqi Treaty. The kingdom of Iraq was granted full independence in 1932, following the Anglo-Iraqi Treaty (1930). The independent Iraqi Kingdom under the Hashemite rulers underwent a period of turbulence through its entire existence. Establishment of Sunni religious domination in Iraq was followed by Assyrian, Yazidi and Shi'a unrests, which were all brutally suppressed. In 1936, the first military coup took place in the Kingdom of Iraq, as Bakr Sidqi succeeded in replacing the acting Prime Minister with his associate. Multiple coups followed in a period of political instability, peaking in 1941.