What role did Manifest Destiny play in U.S. foreign relations?

Manifest Destiny played a crucial role in shaping U.S. foreign relations by justifying territorial expansion. This belief, prevalent in the 19th century, was predicated on the idea that the United States was destined to expand across the North American continent, spreading its values and institutions. Consequently, this mindset often dismissed the sovereignty of neighboring nations and Indigenous populations, leading to aggressive policies aimed at acquiring new territories.

As the U.S. sought to expand its borders, actions such as the annexation of Texas and the acquisition of Oregon and California further demonstrated the application of Manifest Destiny in foreign affairs. This expansionist approach often resulted in conflicts, such as the Mexican-American War, effectively altering the landscape of North America and cementing the belief that the U.S. had a moral obligation to expand its civilization.

The other options do not accurately reflect the primary implications of Manifest Destiny. While there were diplomatic endeavors with European nations, those were not central to the concept of Manifest Destiny; rather, they often involved negotiations following territorial gains. Similarly, Manifest Destiny did not limit military intervention; rather, it often justified such interventions as necessary for the expansion of U.S. territory and influence. The idea did not promote international diplomacy in the traditional sense but rather advocated for a