Answer
Sumner Welles was an American diplomat who helped to remove Gerardo Machado from power in Cuba. Machado was a dictator who had ruled Cuba for seven years, and his rule had become increasingly oppressive. Welles helped to organize a coalition of Cuban opposition groups, and he also pressured the United States government to take action against Machado. In 1933, Machado was forced to resign, and a new government was installed.