ACE '15
U.S. Air Force Staff Sgt. Michael John Maxwell, 31st Aircraft Maintenance Squadron crew chief, inspects an F-16 Fighting Falcon with the 510th Fighter Squadron from Aviano Air Base, Italy before takeoff at Kallax Air Base, Sweden, May 27, 2015 during Arctic Challenge Exercise 2015. Nine nations participated in the exercise to help ensure interoperability and strengthen relationships with NATO allies and Partners for Peace. (U.S. Air Force photo by Staff Sgt. Evelyn Chavez/Released)