U.S. Air Force Staff Sgt. Matthew Evans, 435th Construction Training Squadron structural contingency instructor, drills holes into a metal frame at the 435th CTS compound near Ramstein Air Base, Germany, April 26, 2019. The frame replaced a display case holding a WWII aircraft engine at a memorial in Picauville, France. (U.S. Air Force photo by Staff Sgt. Devin Boyer)