An F-16 Fighting Falcon receives upgrades at Misawa Air Base, Japan, Jan. 27, 2012. Upgrades to the F-16s include an Onboard Oxygen Generation Systems, Beyond Line of Sight Communications, and Embedded Global Positioning and Inertial Navigation Systems. These systems will improve the lethality of the aircraft. (U.S. Air Force photo/Airman 1st Class Kia Atkins)