Final answer:
Theodore Roosevelt used the Monroe Doctrine in 1904 to assert America's right to intervene in Latin American nations as an "international police power" and prevent European involvement in the hemisphere.
Step-by-step explanation:
Theodore Roosevelt used the Monroe Doctrine in 1904 to assert the right of America to intervene in Latin American nations as an "international police power". He extended the doctrine in a speech to Congress, stating that America's intervention was necessary to collect debts and prevent European involvement in the hemisphere.