U.S. Airmen with the 12th Airborne Command and Control Squadron perform pre-flight ops checks on an E-8C Joint STARS in preparation for a mission during a combat exercise at Robins Air Force Base, Ga., in July 2015. JSTARS is a key warfighting asset that provides airborne battle management command and control and intelligence, surveillance and reconnaissance information about ground movements to detect and track enemy forces and is undergoing a recapitalization effort. As part of that effort, the JSTARS Recap program office at Hanscom Air Force Base, Mass., awarded two contract actions March 24 for radar risk reduction efforts. (U.S. Air National Guard photo by Senior Master Sgt. Roger Parsons/Released)