On 22 January 1961, the ship had 600 passengers and 300 crew members. Among the passengers were men, women, children, and 24
Iberian leftists led by Henrique Galvão. Henrique Galvão was a Portuguese military officer and political opponent of Portuguese
dictator António de Oliveira Salazar, the head of the
Estado Novo regime. Galvão had carefully planned the hijacking in
Caracas with the intention of waging war until Salazar was overthrown in Portugal and the overseas territories were subsequently offered independence. He planned on using the hijacking as a way to bring attention to the Estado Novo in Portugal and the related
fascist regime in
Francoist Spain. The rebels had boarded the ship in
La Guaira (
Venezuela) and in
Willemstad (
Curaçao), disguised as passengers, bringing aboard suitcases that had secret compartments to hide their weapons. In the early hours of 22 January, The whereabouts of the ship then remained unknown for several days, until an extensive air and sea search by the Americans, British, and Dutch discovered her and established communication in mid-Atlantic. Subsequently, a United States Navy fleet, including four
destroyers and (which carried a detachment of Marines from "G" Company, 2nd Battalion of the 6th Marine Regiment from Camp Lejeune, North Carolina) under the overall command of Rear Admiral
Allen E. Smith, cut short Galvão's plans when they surrounded
Santa Maria some off
Recife,
Brazil. The following day, Admiral Smith left his
flagship, , and proceeded via launch to
Santa Maria to begin negotiations with Galvão. Because of an anticipated change of presidency in Brazil (the incoming President
Jânio Quadros being more sympathetic to Galvão's political interests), it was not until the next day that
Santa Maria, surrounded by United States naval vessels, entered the harbor of Recife. There, on 2 February, Galvão and his 24 activists surrendered
Santa Maria, 600 passengers and crew of 300 to Brazilian authorities in exchange for
political asylum. Galvão later announced that his intention had been to sail to Angola, to set up a rebel Portuguese government in opposition to Salazar. ==Legacy==