What was the belief behind Manifest Desteiny?

Answer 1

Manifest Destiny was the 19th-century belief that the expansion of the United States across the American continent was both justified and inevitable. Advocates argued that it was the nation's divine right and destiny to spread democracy and capitalism, often at the expense of Native American lands and cultures. This ideology fueled westward expansion, leading to significant territorial acquisitions and conflicts, including the Mexican-American War. Ultimately, it reflected a sense of American exceptionalism and a commitment to spreading perceived progress and civilization.