Airmen from Hawk Aircraft Maintenance Unit welcome an RQ-4 Global Hawk aircraft at an undisclosed location in Southwest Asia March 8, 2015. Block 20s were initially fielded with imagery intelligence (IMINT)-only capabilities. Three Block 20s have been converted to an EQ-4 communication relay configuration, carrying the Battlefield Airborne Communication Node, or BACN, payload. (U.S. Air Force photo/Tech. Sgt. Marie Brown)