US seized 550,000 square miles of Mexico and built bases to consolidate it.
Evidence
As Euro-American migration continued, the young nation soon seized more than half of Mexico: some 550,000 square miles of land, including all of present-day California, Utah, Nevada, and most of Arizona. It acquired the Oregon Territory from Britain and absorbed the Republic of Texas. In 1853, the Gadsden Purchase added yet more Mexican land, a swath of territory in Arizona and New Mexico larger than today’s entire state of West Virginia. Scores of new Army bases—from Texas’s Fort Bliss to Arizona’s Fort Huachuca, from the Presidio in San Francisco to the Vancouver Barracks in Oregon Country—quickly followed, assisting in the expansion. — David Vine, Base Nation_ How U.S. Military Bases…, 60
Categorization
Category: Factual Claims