Mohammad Reza then replaced his father on the throne (September 16, 1941).In the early 1950s a struggle for control of the Iranian government developed between the shah and Mohammad Mosaddegh, a zealous Iranian nationalist. In March 1951 Mosaddegh secured passage of a bill in the Majles (parliament) to nationalize the vast British petroleum interests in Iran. Mosaddegh’s power grew rapidly, and by the end of April Mohammad Reza had been forced to appoint Mosaddegh premier. A two-year period of tension and conflict followed. In August 1953 the shah tried and failed to dismiss Mosaddegh and, after riots broke out, fled the country. Several days later, however, Mosaddegh’s opponents, with the covert support and assistance of the United States and the United Kingdom, restored Mohammad Reza to power.
