U.S. Air Force Airman Jacob Wood, 31st Aircraft Maintenance Squadron, 555th Aircraft Maintenance Unit crew chief, marshals a U.S. Air Force F-16 Fighting Falcon during Astral Knight 2021 at Aviano Air Base, Italy, May 13, 2021. Astral Knight 21 aims to enhance the command and control integration, coordination and interoperability of air, land and sea capabilities, and overlapping operations into the integrated air and missile defense enterprise. (U.S. Air Force photo by Staff Sgt. Savannah L. Waters)