General Discussion

When Eisenhower basically handed over power to the Dulles brothers, because being President got in the way of his golf game, CIA Director Allan Dulles worked with the British to overthrew Prime Minister Mohammad Mosaddegh, who had threatened to nationalize the Anglo-Persian Oil Company (now BP). That was in 1953. In the aftermath, Shah Mohammad Reza Pahlavi firmed up his grip on the country using repression. A secret police, Sazeman-e Ettela'at va Amniyat-e Keshvar (SAVAK), was organized by the CIA to keep repression going. The Shah was correctly seen by most of the world as a propped-up puppet to the British and Americans, and the simmering hostility led to the Shah's overthrow by folks who then created the Islamic Republic and all that came with it.

British interference, as well as Russia's, in Iran/Persia goes back to the "Great Game" of the 18th and 19th centuries.

"U.S. interests abroad" is another way of saying "corporate interests." We're still told to go die for oil interests, as well as the interests of oligarchs and corporations salivating over rare earth minerals that may or may not be there. In all the time since Mosaddegh's overthrow nothing much has changed except the weapons technology.