Joint training validates NATO peace commitment
LASK AIR BASE, Poland -- A U.S. Air Force F-16 Fighting Falcon fighter aircraft pilot acknowledges a wave from a Polish air force maintainer July 16, 2013. The F-16, from Aviano Air Base, Italy, taxied toward the arming station before beginning the day's training session. (U.S. Air Force photo by Staff Sgt. Daryl Knee/Released)