A U.S. Army jumpmaster watches Polish paratroopers board a U.S. Air Force C-130J Super Hercules during Exercise Aviation Rotation 18-4 at Krakow, Poland, Aug. 7, 2018. Approximately 100 U.S. Airmen and several U.S. Soldiers arrived in Poland from Ramstein Air Base, Germany, to participate in an annual bilateral exercise with the Polish military. (U.S. Air Force photo by Senior Airman Joshua Magbanua)