As president, Allende sought to nationalize major industries, expand education and improve the living standards of the working class. He clashed with the right-wing parties that controlled Congress and with the judiciary. On 11 September 1973, the military moved to oust Allende in a "coup d'état" supported by the United States Central Intelligence Agency (CIA). As troops surrounded La Moneda Palace, he gave his last speech vowing not to resign. Later that day, Allende committed suicide, according to an investigation conducted by a Chilean court with the assistance of international experts in 2011.