A crew chief from the 28th Aircraft Maintenance Squadron at Ellsworth Air Force Base, S.D., waits to usher a B-1B Lancer from its parking spot prior to launching for a Dynamic Force Employment mission to the U.S. European Command area of responsibility, May 28, 2020. This long-range, long-duration mission allowed aircrew the opportunity to familiarize themselves with NATO allies and partner-nation air crews, airspace and operations in the U.S. EUCOM area of responsibility. (U.S. Air Force photo Senior Airman Nicolas Z. Erwin)