The Treaty of Guadalupe Hidalgo was a peace treaty signed by the United States and Mexico in 1848. It gave the U.S. possession of California, Arizona, Utah, New Mexico, Nevada, and sections of Colorado and Wyoming. The US also took possession of the Rio Grande boundary for Texas.
Nevada
california
arizona
They added former Mexican territory to the United States.
Those territories were acquired from Mexico, first during the Mexican-American War (1846-1848) and then the southern parts of both states during the Gadsden Purchase (1853).From Mexico after the Mexican American War under the Treaty of Guadalupe Hidalgo.
Utah
Nevada
All Western states
All of them were acquired form Mexico.
The Treaty of Guadalupe Hidalgo,
California, New Mexico, Arizona, Nevada, Utah, Wyoming and Colorado were ALL affected to some degree by that treaty. More than one state.
Treaty of Guadalupe-Hidalgo was an 1848 treaty in which Mexico gave up California and New Mexico to the United States for 15 million
California.
Texas
The United States qualifies as such.
california
Treaty of Guadalupe Hidalgo