September 11 is a sad anniversary in Chile also for, as the Christian Science Monitor puts it:

"The Chilean air force doesn't celebrate the only combat mission it ever flew. On this day 40 years ago, its jets bombed radio transmitters, the president's residence, and the presidential palace in Santiago." 

The Chilean military, with the aid of the American CIA, overthrew the government of the elected Marxist president, Salvador Allende. A military junta headed by General Augusto Pinochet took over from Allende, who swallowed his gun. In other countries that would be called a "coup d'etat."  In Chile and Egypt, not so much.