sentences:  Olney claimed that the Monroe Doctrine gave the U.S. authority to mediate border disputes in the Western Hemisphere.Olney extended the meaning of the Monroe Doctrine, which had previously stated merely that the Western Hemisphere was closed to additional European colonization.The statement reinforced the original purpose of the Monroe Doctrine, that the U.S. had the right to intervene in its own hemisphere and foreshadowed the events of the Spanish–American War three years later.