F-16 Falcon Marshal An Air Force crew chief assigned to the 510th Expeditionary Fighter Squadron marshals an Air Force F-16 Fighting Falcon at 86th Air Base, Romania, April 30, 2022. The 510th EFS conducts enhanced air policing operations over NATO airspace in order to maintain peace, prosperity and stability in the region. SHARE: Download: Full Size (2.52 MB) Tags: nato, ukraine response Credit: Air Force Master Sgt. Nathan Lipscomb VIRIN: 220430-F-XD880-0468.JPG Photo Gallery