What did the Texas revolution and the Mexican war expand the territory of the US?

The Texas Revolution (1835-1836) led to Texas gaining independence from Mexico and its subsequent annexation by the United States in 1845, significantly expanding U.S. territory. The Mexican-American War (1846-1848) further enlarged the nation as the U.S. acquired vast territories, including present-day California, Arizona, New Mexico, Nevada, Utah, and parts of Colorado and Wyoming, through the Treaty of Guadalupe Hidalgo. These territorial gains were instrumental in fulfilling the concept of Manifest Destiny, the belief that the U.S. was destined to expand across the North American continent.