Humberto de Alencar Castelo Branco

Humberto de Alencar Castelo Branco was a Brazilian army marshal and president from 1964 to 1967, the first ruler of the military regime established after João Goulart’s overthrow.

Institutional Act Number One: A 1964 decree that authorized political purges and indirect elections under Brazil’s new military government. It gave Castelo Branco’s government powers to remove officials and constrain political opponents.
National Security Doctrine: A Cold War framework that treated internal political conflict as a security threat to the state. It informed the regime’s justification for surveillance, repression, and military intervention in politics.
João Goulart: Brazilian president from 1961 until his overthrow by a military coup in 1964. Castelo Branco succeeded the president whose removal brought him to power.
1964 Brazilian coup d'état: The military overthrow of Brazilian president João Goulart in March and April 1964. It brought Castelo Branco to the presidency and began the military regime.
Institutional Act Number Two: A 1965 decree that abolished existing political parties and established indirect presidential elections in Brazil. It narrowed political competition during his presidency and reorganized the party system.
Brazilian National Intelligence Service: A Brazilian intelligence agency created in 1964 to coordinate information gathering for the government. Castelo Branco established it to centralize intelligence within the new regime.
Costa e Silva: Brazilian army general and president from 1967 to 1969, succeeding Castelo Branco. He represented the military faction that followed Castelo Branco in the presidency.
João Goulart presidency: The Brazilian government led by João Goulart from 1961 until his removal in 1964. Political conflict during Goulart’s presidency preceded the coup that elevated Castelo Branco.
Institutional Act Number Five: A 1968 decree that expanded the Brazilian military regime’s powers to suspend rights and close Congress. It extended the authoritarian trajectory begun under Castelo Branco, though issued after he left office.
Brazilian Democratic Movement: The opposition party permitted under Brazil’s military regime after the 1965 reorganization of political parties. It became the authorized electoral opposition to the regime’s governing party during his presidency.

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