Through the Mexican-American War (1846-1848).
Texas did.
The Mexican Cession was acquired in 1848 at the Treaty of Guadalupe Hidalgo.
The mexican cession cause people to get more land
the United states paid Mexico $15 million dollars for this land, which became known as the mexican cession
The Treaty of Guadalupe Hidalgo in 1848 after the end of the Mexican-American war.
The United States benefited from the Mexican Cession by gaining ground back. The land they gained became Nevada, Utah, Arizona, and California.
Mexican Cession
1848 by us pres. James Polk
the Mexican Cession
Indeed. However, it is not called 'secession' but "Mexican Cession".
Mexican Cession
the Mexican cession was the result of war with Mexico.