In 1963, Cuba sent 686 troops together with 22 tanks and other military equipment to support Algeria in the Sand War against Morocco. In 1964, Cuba organized a meeting of Latin American communists in Havana and stoked a civil war in the Dominican Republic in 1965 that prompted the U.S. military to intervene there. Che Guevara engaged in guerrilla activities in Congo and was killed in 1967 while attempting to start a revolution in Bolivia. During the 1970s, Fidel Castro dispatched tens of thousands of troops in support of Soviet-supported wars in Africa. He supported the MPLA in Angola and Mengistu Haile Mariam in Ethiopia.