139th CES DEF

The 139th Civil Engineer Squadron, known as the 139th CES, is a key support unit within the 139th Airlift Wing of the Missouri Air National Guard, stationed at Rosecrans Air National Guard Base in St. Joseph, Missouri. The squadron specializes in engineering, construction, emergency management, and disaster response, providing essential base infrastructure support and rapid deployment capabilities. As part of its Defense Emergency Force (DEF) mission, the 139th CES has participated in both domestic operations—such as disaster relief during floods and storms—and overseas deployments supporting U.S. Air Force missions. Over the years, the unit has earned recognition for its professionalism, readiness, and vital contributions to both state and federal military operations.