Four KC-135 Stratotankers await a mission on the flightline in support of Baltic Operations 2015, June 9, 2015, at Powidz Air Base, Poland. Baltops, held June 5-20, is a multinational maritime exercise held in parts of Poland, Sweden, Germany, and throughout the Baltic Sea, and includes participation from 14 NATO and three partner nations. (U.S. Air Force photo/Senior Airman Michael Battles)