A 507th Air Refueling Wing KC-135R Stratotanker flown by pilots Capt. Chris Nutt and 1st Lt. Cody Rosecrans from Tinker Air Force Base, Oklahoma, lead a formation of U.S. and Italian Air Forces aircraft consisting of F-35 Lightning IIs, F-16 Fighting Falcons and a B-52 Stratofortress over the Adriatic Sea during Astral Knight 19, June 4, 2019. KC-135 boom operators, Master Sgt. Ryan Cornell and Tech. Sgt. Shaylon Ladd, refueled the U.S. Air Force fighter aircraft during the mission. Astral Knight is an exercise taking place throughout various locations in Europe, involving over 900 Airmen and supports the collective defense and security of NATO allies and U.S. forces in Europe. (U.S. Air Force photo by Staff Sgt. Joshua R. M. Dewberry)