How did Latin American countries use military dictatorships and Marxist revolutions after World War II?

Following World War II, Latin America experienced significant political volatility as nations grappled with economic inequality and Cold War pressures. Military dictatorships and Marxist movements emerged as competing, often failed, responses to these challenges.1

Marxist Revolutions

The 1959 Cuban Revolution served as a primary catalyst for Marxist-inspired activity in the region. Fidel Castro’s success in establishing a communist state inspired students, intellectuals, and guerrilla groups across Latin America to challenge existing social structures through rural insurgency and urban terrorism. While these movements often sought to address stark inequality, they frequently relied on material support from Cuba and the Soviet Union. In Chile, Salvador Allende attempted a democratic path to socialism, but his government was ultimately overthrown in 1973.23

Military Dictatorships

In response to perceived economic mismanagement by populists and the threat of Marxist insurgency, many countries turned to "bureaucratic authoritarianism". These military regimes, such as those in Brazil, Argentina, and Chile under Augusto Pinochet, prioritized economic stabilization and modernization through technocratic control.4

These regimes often committed severe human rights violations, including torture and forced disappearances, to suppress political opposition. While these dictatorships were often supported by the United States as a bulwark against communism, they frequently struggled to achieve long-term economic success or democratic stability.432