The helmet of U.S. Air Force Capt. Todd Possemato,

The helmet of U.S. Air Force Capt. Todd Possemato, an 18th Aggressor Squadron pilot, reflects off of the canopy of an F-16 Fighting Falcon as the boom from a KC-135 Stratotanker extends to refuel the fighter aircraft May 4, 2015, during Red Flag-Alaska. The unit’s star and yellow hammer-and-sickle symbolizes the Soviet Union, the United States’ enemy during the Cold War. Today, the 18th AGRS replicate threats faced by combat air forces rather than a specific adversary. The F-16 is assigned to the 354th Fighter Wing, Eielson Air Force Base, Alaska, and the Stratotanker is deployed for the exercise from Fairchild Air Force Base, Wash. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)