The Iranian Parliament has approved a measure that would sue the U.S. government for overthrowing Iran’s nationalist government 60 years ago this month. On August 19, 1953, Iranian Prime Minister Mohammad Mossadegh was toppled in a coup organized by U.S. and British intelligence. Mossadegh was targeted after nationalizing Iran’s oil industry, sidelining the Anglo-Iranian Oil Company, which later became known as British Petroleum, or BP. The removal of Iran’s first democratic government ushered in more than two decades of dictatorship under the Shah, who relied heavily on U.S. aid and arms. The Iranian vote to sue the United States comes days after the CIA finally admitted to its role in the coup with the release of declassified reports.