In the Mandate period and beyond, the British supported the traditional, Sunni leadership (such as the tribal "shaykh"s) 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.