Manifest Destiny: The belief that it was America's God-given right to expand westward across North America, which aligns with Monroe Doctrine's idea about American dominance in Western Hemisphere.
Roosevelt Corollary: An addition to the Monroe Doctrine by President Theodore Roosevelt stating that US could intervene militarily in Latin America if necessary to prevent European intervention.
Latin America Independence Movements: These were political movements in various countries within Latin America seeking independence from European colonial powers, which were indirectly supported by the Monroe Doctrine.