Chief Master Sgt. Douglas Vines, 100th Civil Engineer Squadron career enlisted manager, salutes U.S. Secretary of Defense Dr. Mark T. Esper before his departure from RAF Mildenhall, England, June 26, 2020. Esper met with 100th ARW, 352nd Special Operations Wing, Royal Air Force and tenant unit leadership to learn of the various mission sets and discuss the base’s role in operations in both the European and African theaters. (U.S. Air Force photo by Brandon Esau)