U.S. Air Force Airman 1st Class Jose Rosales, 35th Aircraft Maintenance Squadron, 13th Aircraft Maintenance Unit assistant dedicated crew chief, checks a compartment of an F-16 Fighting Falcon at Misawa Air Base, Japan, July 28, 2015. Before and after flight, crew chiefs service aircraft with fuel, hydraulic fluid and liquid oxygen. (U.S. Air Force photo by Airman 1st Class Jordyn Fetter/Released)