The 39th MSG provides combat support, including security, law enforcement, fire, disaster response, explosive ordnance disposal, CBRNE training and response, communications, family support, housing, provisions, facility engineers, environmental services, personnel management, fuel, transportation, logistics readiness and recreation to assigned forces protecting U.S. and NATO interests in the region. The group supports three geographically separated units in Turkey and multinational forces for Operations Enduring and Iraqi Freedom.

The 39th MSG oversees eight squadrons: 39th Civil Engineer Squadron, 39th Contracting Squadron, 39th Communications Squadron, 39th Logistics Readiness Squadron, 39th Force Support Squadron, 39th Security Forces Squadron, 425th Air Base Squadron in Izmir, Turkey, and the 717th Air Base Squadron in Ankara, Turkey.

(Current as of March 2013)