421st EFS 'Black Widows' provide combat airpower Air Force Lt. Col. Thomas Wolfe, 455th Expeditionary Operations Group deputy commander, performs preflight checks on an F-16 Fighting Falcon at Bagram Airfield, Afghanistan, Feb. 1, 2016. The 421st Expeditionary Fighter Squadron based out of Bagram is the only dedicated fighter squadron in the country and continuously supports Operation Freedom’s Sentinel and the NATO Resolute Support mission. Air Force photo by Tech. Sgt. Nicholas Rau SHARE: Download: Full Size (0.35 MB) Credit: Tech. Sgt. Nicholas Rau VIRIN: 160201-F-EB935-004.JPG Photo Gallery