U.S. Air Force Reserve Officer Training Corps (ROTC) cadets perform pushups while calling cadence during a KC-135 Stratotanker aircraft incentive flight June 14, 2018 over the Eastern United States. The ROTC cadets were invited to MacDill Air Force Base, Fla., as part of Operations Air Force, which is a two week visitation in which cadets had an opportunity to work alongside military members, receive mentorship and experience different career fields. (U.S. Air Force photo by Airman 1st Class Scott Warner)