President Theodore Roosevelt promptly proclaimed the right of the U.S. to a result,u.s. Marines were sent into Santo Domingo in 1940, Nicaragua in1911,and Haiti 1915.To keep the Europeans out..Other Latin American nations viewed these interventions with misgiving,relations between the "great colossus"of the North,and it's Southern neighbors remained strained for years.In 1962,the Monroe Doctrine was invoked symbolically when the Soviet Union began to build missile launching sites in Cuba.With the support of the organization of American States,