665 Days In Iraq

Faced with spiraling costs and influenced by the public protestations of war hero 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.
• British Mandate of Mesopotamia
It initially formed two former Ottoman vilayets (regions): Baghdad and Basra into a single country in August 1921. Five years later, in 1926, the northern vilayet of Mosul was added, forming the territorial boundaries of the modern Iraqi state.