Mexico is a country on the North American continent.
In 2008, John Connor would return to Mexico with his girlfriend, Riley Dawson, on vacation. The two were arrested after a fight at a local bar which attracked the attention of the Series 888 infiltrator known as Cromartie and former FBI Agent James Ellison. The Connors, Resistance commander Derek Reese, and terminator Cameron were able to disable Cromartie at a small church in the country. They would later bury the powered down endoskeleton in the country; which would be recovered by Ellison and delivered to Catherine Weaver of Zeira Corp (Terminator: The Sarah Connor Chronicles).