89th Military Police Brigade Patch Full Color Sew-On for the AGSU. Sold individually. Made in the USA. The 89th Military Police Brigade is headquartered at Fort Cavazos, Texas. The 89th Military Police Brigade has a rich history of service, having been activated in 1966. The brigade has participated in numerous significant operations, including deployments in support of Operation Desert Storm, Operation Iraqi Freedom, and Operation Enduring Freedom.