“NOV 5, 1959: In a memorandum to President [Dwight D.] Eisenhower, [Secretary of State] Christian Herter describes the changing policy towards Cuba, ‘All actions of the United States Government should be designed to encourage within Cuba and elsewhere in Latin America opposition to the extremist, anti-American course of the Castro regime.’ Herter adds, ‘[However], in achieving this objective, the United States should avoid giving the impression of direct pressure or intervention against Castro, except where defense of legitimate United States interest is involved.’”
“The Bay of Pigs Invasion/Playa Giron: A Chronology of Events,” The National Security Archive, NSArchive2.gwu.edu