Ernesto "Che" Guevara (/?t?e? g?'v??r?/,[3] Spanish: [e?'nesto 't?e ?e'ßa?a];[4] June 14, 1928[5] – October 9, 1967) was an Argentine Marxist revolutionary, physician, author, activist, guerrilla leader, diplomat, and major figure of the Cuban Revolution, his stylized visage has become a ubiquitous countercultural symbol of rebellion and global insignia in popular culture.[6] Marxism–Leninism led him to posit that the Third World's underdevelopment and dependence was an intrinsic result of imperialism, neocolonialism and monopoly capitalism, with the only remedy being proletarian internationalism and world revolution.[14][15] Guevara left Cuba in 1965 to foment revolution abroad, first unsuccessfully in Congo-Kinshasa and later in Bolivia, where he was captured by CIA-assisted Bolivian forces and summarily executed.[16]