"In New Mexico, Government bent, and others sympathetic to the American takeover were killed on Jan. 19, 1847 by a group of Spanish descendants, Indians and Mexicans. The U.S. was also heavily influenced by Manifest Destiny—the idea that the U.S. had the natural right to rule North America from coast to coast. Consequently, various presidential administrations in the 1820s and 30s sought to purchase land from Mexico, with no avail."
From history.org
From history.org