This picture taken on April 25, 2017 shows a US F-35A Lightning II aircraft at Amari Air Base, Estonia. Two F-35A Lightning II aircraft and approximately 20 supporting airmen are from the 34th Fighter Squadron, 388th Fighter Wing, and the Air Force Reserve 466th Fighter Squadron, 419th Fighter Wing, Hill Air Force Base, in Utah (US). / AFP PHOTO / RAIGO PAJULA