The opposite of Secede would be Join.
The treaty added an additional 525,000 square miles to United States territory, including the land that makes up all or parts of present-day Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. Mexico also gave up all claims to Texas and recognized the Rio Grande as America's southern boundary.
I just got home from work buddy I got a ride home
George Washington's presidency was marked by a series of firsts. ... Under Washington's leadership, the states ratified the Bill of Rights, and five new states entered the union: North Carolina (1789), Rhode Island (1790), Vermont (1791), Kentucky (1792) and Tennessee (1796).