 In 1930, he released the Clark Memorandum, a rejection of the Roosevelt Corollary and a move towards non-interventionism in Latin America.Hoover did not completely refrain from the use of the military in Latin American affairs; he thrice threatened intervention in the Dominican Republic, and he sent warships to El Salvador to support the government against a left-wing revolution.Notwithstanding those actions, he wound down the Banana Wars, ending the occupation of Nicaragua and nearly bringing an end to the occupation of Haiti.