A Bulgarian air force MiG-29 Fulcrum taxis back to the ramp at Graf Ignatievo Air Base, Bulgaria, during Thracian Star on July 15, 2015. Airmen and F-16s from the 177th Fighter Wing of the New Jersey Air National Guard flew sorties with the Bulgarian air force at Thracian Star, a bilateral training exercise designed to enhance interoperability. (U.S. Air National Guard photo by Master Sgt. Andrew J. Moseley/Released)