A German Air Force (Luftwaffe) GR-4 Tornado fighter-bomber aircraft flies in formation alongside an Alaska Air National Guard (AKANG) 168th Air Refueling Squadron (ARS), 168th Air Refueling Wing (ARW), KC-13R Stratotanker aerial refueling aircraft, based at Eielson Air Force Base (AFB), Alaska (AK), during an aerial refueling mission during Exercise COOPERATIVE COPE THUNDER, the largest multinational air combat training exercise in the Pacific. This 15-day exercise simulates wartime combat conditions so that military personnel from 12-nations can sharpen their air fighting skills, exchange air operational tactics, and build closer relations with each other