Ayatollah khommeni which country did he overthrow?

Ayatollah Khomeini overthrew the Pahlavi monarchy in Iran during the Islamic Revolution of 1979. He led a movement that resulted in the abdication of Shah Mohammad Reza Pahlavi, ultimately establishing an Islamic Republic in Iran. Khomeini's leadership was pivotal in transforming Iran's political and social landscape, shifting it from a secular regime to one based on Islamic principles.