Date Range1990s (1990-1999)DescriptionThe state that borders Arizona on the south isn't part of the United States of America ... it's part of the Republic of Mexico. Arizona and the Mexican state of Sonora began working together formally in the 1950s to address issues that affected them both. This working group became known as the Arizona-Mexico Commission, and when Arizona and Sonora opened trade offices in one another’s state capitals in the 1990s, the Commission gained new importance.More InformationArizona-Mexico Commission
