Pahlavi Dynasty - World War II

World War II

Following Germany's invasion of the Soviet Union in June 1941, Britain and the Soviet Union became allies. Britain and the USSR saw the newly-opened Trans-Iranian Railway as an attractive route to transport supplies from the Persian Gulf to the Soviet Union. In August 1941, because Reza Shah refused to expel the German nationals, Britain and the Soviet Union invaded Iran, arrested the Shah and sent him into exile, taking control of Iran's communications and railroad. In 1942, the United States, an ally of Britain and the USSR during the war, sent a military force to Iran to help maintain and operate sections of the railroad. Over the next few months, the three nations took control of Iran's oil resources and secured a supply corridor for themselves. Reza Shah's regime collapsed, and the American, British and Soviet authorities limited the powers of the rump government that remained. They permitted Reza Shah's son, Mohammad Reza Pahlavi to accede to the throne.

In January 1942, they signed an agreement with Iran to respect Iran's independence and to withdraw their troops within six months of the war's end. In 1943 at the Tehran Conference, the United States reaffirmed this commitment. In 1945, the USSR refused to announce a timetable to leave Iran's northwestern provinces of East Azerbaijan and West Azerbaijan, where Soviet-supported autonomy movements had developed. At the time, the Tudeh Party of Iran, a communist party that was already influential and had parliamentary representation, was becoming increasingly militant, especially in the North. This promoted actions from the side of the government, including attempts of the Iranian armed forces to restore order in the Northern provinces. While the Tudeh headquarters in Tehran were occupied and the Isfahan branch crushed, the Soviet troops present in the Northern parts of the country prevented the Iranian forces from entering. Thus, by the late autumn of 1945, the North was virtually controlled by the Tudeh and its affiliates.

The USSR withdrew its troops in May 1946, but tensions continued for several months. This episode was one of the precipitating events of the emerging Cold War, the postwar rivalry between the United States and its allies, and the USSR and its allies.

Iran's political system became increasingly open and more political parties were formed . In 1944, the election for the Majlis was the first genuinely competitive election in more than twenty years. Foreign influence remained a very sensitive issue for all parties. The Anglo-Iranian Oil Company (AIOC), which was owned by the British government, continued to produce and market Iranian oil. At the beginning of the 1930s, some Iranians began to advocate nationalization of the country's oil fields. After 1946, this became an increasingly popular political movement.