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Modern history of Iraq

History of Iraq since World War I

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Through World War I, Iraq and Ba'ath Party

British Mandate

Ottoman rule over Iraq lasted until the First World War when the Ottomans sided with Germany and the Central Powers. In the Mesopotamian campaign against the Central Powers, British forces invaded the country and suffered a major defeat at the hands of the Turkish army during the Siege of Kut (1915–16). British forces regrouped and captured Baghdad in 1917. An armistice was signed in 1918.

Modern Iraq was established from the former three Ottoman provinces, Baghdad Vilayet, Mosul Vilayet and Basra Vilayet, which were known as Al-'Iraq. The Sykes-Picot agreement was a secret agreement between UK and France with the assent of Imperial Russia, defining their respective sphere of influence and control in West Asia after the expected downfall of the Ottoman Empire during World War I. The Agreement was concluded on 16 May 1916. On 11 November 1920 it became a League of Nations mandate under British control with the name "State of Iraq".

Britain imposed a Hāshimite monarchy on Iraq and defined the territorial limits of Iraq without taking into account the politics of the different ethnic and religious groups in the country, in particular those of the Kurds and the Assyrians to the north. During the British occupation, the Shi'ites and Kurds fought for independence.

Faced with spiralling costs and influenced by the public protestations of T. E. Lawrence in The Times, Britain replaced Arnold Wilson in October 1920 with new Civil Commissioner Sir Percy Cox. Cox managed to quell the rebellion, yet was also responsible for implementing the fateful policy of close cooperation with Iraq's Sunni minority.

In the Mandate period and beyond, the British supported the traditional, Sunni leadership (such as the tribal shaykhs) over the growing, urban-based nationalist movement. The Land Settlement Act gave the tribal shaykhs the right to register the communal tribal lands in their own name. The Tribal Disputes Regulations gave them judiciary rights, whereas the Peasants' Rights and Duties Act of 1933 severely reduced the tenants', forbidding them to leave the land unless all their debts to the landlord had been settled. The British resorted to military force when their interests were threatened, as in the 1941 Rashīd `Alī al-Gaylānī coup. This coup led to a British invasion of Iraq using forces from the British Indian Army and the Arab Legion from Jordan.

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