A commercial flight from 
A commercial flight from this nation was shot down by the USS Vincennes in 1988, after the Vincennes had encroached onto this nation's territorial waters. Many men in this nation fulfilled their compulsory military service by teaching villagers to read during the White Revolution. A secret police called the SAVAK was established after Operation Ajax overthrew this nation's Prime Minister, Mohammed Mossadeq. This nation engaged in a eight-year war with a neighbor that ended with a return to borders set in the Algiers Agreement, Iraq. For 10 points, name this nation once ruled by Shah Mohammed Reza Pahlavi, who was overthrown and replaced by Ayatollah Khomeini.
A commercial flight from this nation was shot down by the USS Vincennes in 1988, after the Vincennes had encroached onto this nation's territorial waters.
Islamic Republic of Iran 