Chief Master Sgt. Kathi Glascock, 100th Air Refueling Wing command chief, and Col. S. Troy Pananon, salute as U.S. Secretary of Defense Dr. Mark T. Esper’s C-40 Clipper departs from RAF Mildenhall, England, June 26, 2020. Esper toured the air traffic control tower, static displays of a CV-22 Osprey, RC-135 Rivet Joint and spent time speaking with both officer and enlisted Airmen during his tour. (U.S. Air Force photo by Senior Airman Brandon Esau)