After Shah Pahlavi was overthrown Change_of_leadership , he was admitted to the U.S. for cancer Cure treatment Cure .

The 1953 Iranian coup d'état , known in Iran as the 28 Mordad coup d'état ( ) , was the overthrow Change_of_leadership of the democratically elected Change_of_leadership Prime Minister Mohammad Mosaddegh in favour of strengthening Cause_change_of_strength the monarchical rule of Mohammad Reza Pahlavi on 19 August 1953 , orchestrated Arranging by the United States ( under the name `` TPAJAX '' Project or `` Operation Ajax '' ) and the United Kingdom ( under the name `` Operation Boot '' ) .

Following the coup Change_of_leadership in 1953 , a government under General Fazlollah Zahedi was formed Coming_to_be which allowed Mohammad Reza Pahlavi , the last Shah of Iran ( Persian for an Iranian king ) , to rule Control more firmly as monarch .

The `` 1921 Persian Coup '' ( Persian : کودتای ۳ اسفند ۱۲۹۹ ) refers Adducing to several major events in Iran ( Persia ) in 1921 , which eventually led to the establishment of the Pahlavi dynasty as the ruling house of the country in 1925 .

On December 12 , 1925 , Iran 's parliament amended Change_event_time Iran 's constitution of 1906–1907 to replace the Qajar dynasty ( 1797–1925 ) with the Pahlavi dynasty as the legitimate sovereigns of Iran .

Kurdish separatism in Iran or the Kurdish–Iranian conflict is an ongoing , long running , separatist dispute Quarreling between the Kurdish opposition in Western Iran and the governments of Iran , lasting since the emergence of Reza Shah Pahlavi in 1918 .

In August–September 1941 , Pahlavi Iran had been jointly invaded Attack and occupied Control by the Allied powers of the Soviet Red Army in the north and by the British in the centre and south .