Original sentence: The "Canadian Caper" was the popular name given to the joint covert rescue by the Canadian government and the CIA of six American diplomats who had evaded capture during the seizure of the United States embassy in Tehran, Iran, on November 4, 1979, after the Iranian Revolution, when Islamist students took most of the American embassy personnel hostage, demanding the return of the US backed Shah for trial
Edited sentence: The "Canadian Caper" was the popular name given to the joint covert rescue by the Canadian government and the CIA of six American diplomats who had evaded capture during the seizure of the United States embassy in Tehran, Iran, on November 4, 1979, when Islamist students and militants took most of the American embassy personnel as hostages, demanding the return of the Shah for trial