The Republic of Mexico was a nation in Vinland, and is one of the two superpowers in Vinland and Amazonia, alongside Brazil. When the United States collapsed in 2035, Mexico launched an invasion to regain the lands lost from the Mexican-American War. With support from the other Latin American nations, as well as China, Mexico managed to achieve victory and annexed back the lands. In 2150, the Federal Republic of Central Vinland was merged into Mexico after a referendum, along with the Haiti, the Dominican Republic, and Jamaica five years later.
Mexico has some influence over the former United States, along with, Canada.