Iranian coup d'état
In the 1953 coup d'état the Shah, backed by the CIA, overthrew the democratically elected Prime Minister of Iran (Mohammad Mosaddegh). Named 'Operation Ajax' it was implemented following the nationalisation of Anglo-Iranian Oil Company (AIOC) which later became a part of BP. Originally Mosaddegh had tried to both audit the documents of the AIOC as well as limit the control the company maintained over Iranian oil reserves. Following the refusal of the AIOC to cooperate, the Iranian parliament moved to pass a motion nationalising the Iranian oil industry.