Hostilities between the Iraqi and British forces began on 2 May 1941, with heavy fighting at the RAF air base in Habbaniyah. The Germans and Italians dispatched aircraft and aircrew to Iraq utilizing Vichy French bases in Syria; this led to Australian, British, Indian and Free French forces entering and conquering Syria in June and July. With the advance of British and Indian forces on Baghdad, Iraqi military resistance ended by 31 May 1941. Rashid Ali and the Mufti of Jerusalem fled to Iran, then Turkey, Italy, and finally Germany, where Ali was welcomed by Hitler as head of the Iraqi government-in-exile in Berlin.