F-35s and F-15s prep for take-off
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-35A is a fifth generation, multi-role fighter aircraft is deployed here to maximize training opportunities, affirm enduring commitments to NATO allies, and deter any actions that destabilize regional security. (U.S. Air Force photo/Staff Sgt. Emerson Nuñez)