The Iran crisis of 1946, also known as the Iran-Azerbaijan Crisis, followed the end of World War II and stemmed from the Soviet Union's refusal to relinquish occupied Iranian territory, despite repeated assurances. In 1941 Iran had been jointly invaded and occupied by the Allied powers of Soviet Red Army in the north and by the British in the center and south. Iran was used as a transportation route to provide vital supplies to the Soviet Union allies during the War.

As of August 1941, the United States was a neutral nation had not entered as a belligerant in World War II. Therefore, the bloc known as 'The Allies' were principally (with Poland and France occupied by Germany in 1939 and 1940, respectively) the United Kingdom and the Soviet Union, recently forming their alliance after the German invasion of territories of the Eastern Soviet Union in June 1941. In the aftermath of the occupation of Iran, those Allied forces agreed to withdraw from Iran within six months after the cessation of hostilities. However, when this deadline came in early 1946, the Soviets under Joseph Stalin remained in Iran and local pro-Soviet Iranians proclaimed a separatist People's Republic of Azerbaijan.

Iran crisis may refer to

Coordinates: 32°N 53°E / 32°N 53°E / 32; 53

Iran (ⁱ/ɪˈrɑːn/ or /aɪˈræn/;Persian: ایران‎ [ʔiˈɾɒn] ( listen)), officially the Islamic Republic of Iran (Persian: جمهوری اسلامی ایران‎ Jomhuri-ye Eslāmi-ye Irān), is a country in Southern and Western Asia. The name "Iran", which in Persian means "Land of the Aryans", has been in use natively since the Sassanian era. It came into use internationally in 1935, before which the country was known to the Western world as Persia ( /ˈpɜrʒə/ or /ˈpɜrʃə/). Both "Persia" and "Iran" are used interchangeably in cultural contexts; however, "Iran" is the name used officially in political contexts.

The 18th-largest country in the world in terms of area at 1,648,195 km² (636,372 sq mi), Iran has a population of around 79 million. It is a country of particular geopolitical significance owing to its location in the Middle East and central Eurasia. Iran is bordered on the north by Armenia, Azerbaijan and Turkmenistan. As Iran is a littoral state of the Caspian Sea, which is an inland sea, Kazakhstan and Russia are also Iran's direct neighbors to the north. Iran is bordered on the east by Afghanistan and Pakistan, on the south by the Persian Gulf and the Gulf of Oman, on the west by Iraq and on the northwest by Turkey. Tehran is the capital, the country's largest city and the political, cultural, commercial and industrial center of the nation. Iran is a regional power, and holds an important position in international energy security and world economy as a result of its large reserves of petroleum and natural gas. Iran has the second largest proven natural gas reserves in the world and the fourth largest proven petroleum reserves.