An F-35A Lightning II from the 34th Fighter Squadron at Hill Air Force Base, and an F-15C Eagle from the 493rd Fighter Squadron, stand by to take-off for a training sortie at Royal Air Force Lakenheath, England, April 20. The F-35As will also forward deploy from England to NATO bases maximizing training opportunities while also strengthening the NATO alliance and enhance NATO’s collective deterrence posture. (U.S. Air Force photo/Staff Sgt. Emerson Nuñez)