An aviator assigned to the 34th Bomb Squadron, Ellsworth Air Force Base, S.D., completes a pre-flight checklist in preparation for a Dynamic Force Employment mission to the U.S. European Command area of responsibility, May 28, 2020. The mission provided ample learning opportunities for aviators from a variety of platforms to integrate with one another and become familiar with operations in different regions around the globe. (U.S. Air Force photo by Airman 1st Class Quentin Marx)