The Monroe Doctrine was the foundation of U.S. policy in the Western Hemisphere. It opposed colonization and intervention in the Americas.

European powers, like Great Britain, barricaded Venezuela, which led to Roosevelt's concern of European interference.

Roosevelt is elected president of the U.S., and he brings to play the "Big Stick" Diplomacy. The Big Stick Diplomacy was a foreign policy that negotiated peace, but with a threat of military force, so we can achieve foreign policy goals.

This Corollary was an extension of the Monroe Doctrine, asserting the U.S. right to intervene in Latin American countries if they were unable to meet their financial obligations or invite foreign aggression.

The U.S takes control of the Dominican customs houses to handle debt repayment and prevent European intervention.

U.S. military forces return to Cuba to restore order under the Platt Amendment.

This policy extends Roosevelt’s idea, using U.S. economic influence to control Latin American economies.

Marines occupy Nicaragua to protect American interests and enforce stability, consistent with the Corollary.

U.S. sends troops to take control of Haiti’s finances and government under the Roosevelt Corollary justification.

U.S. Marines occupied the Dominican Republic for eight years to oversee customs and political stability.

Franklin D. Roosevelt rejected intervention policies like the Roosevelt Corollary to promote cooperation.

This marks the official end of the Roosevelt Corollary era; the U.S. shifts to a policy of non-intervention.