In April 1967, a group of Greek colonel closely associated with the CIA, staged a military coup. They deposed an elected left-wing government and crushed all opposition in the country. The dictatorship supported by the U.S. government, lasted seven years.
In 1973 a student uprising discredited the coup-makers and eventually lead to democratic transition.
Greece hasn’t forgotten, even if Americans have.
Nov. 17, the day the uprising was quashed, is marked each year with wreath-laying ceremonies at the Athens Polytechnic commemorating those who died there, followed by marches to the U.S. Embassy. The United States had backed the dictatorship that ruled Greece for seven years from 1967.
Source: Police fire tear gas to break up banned gatherings in Greece – The Washington Post