An EC-130 Compass Call based out of Davis-Monthan Air Force Base, Arizona, sits on the flightline between missions at Bagram Airfield, Afghanistan, Jan. 18, 2017. The 41st Electronic Combat Squadron and the 755th Aircraft Maintenance Squadron have been continuously deployed in support of Operation Enduring Freedom, and now the Resolute Support Mission, since 2002. They have been at Bagram since 2004. They are the longest continuously deployed unit in Afghanistan. (U.S. Air Force photo by Staff Sgt. Katherine Spessa)