Keywords: 140517-F-HF922-079 (14302979283).jpg U S Air Force Staff Sgt William Thomas with the 577th Expeditionary Prime Base Engineer Emergency Force Squadron requests two more welding rods while welding two drainage pipes at Bagram Airfield Afghanistan May 17 2014 DoD photo by Senior Airman Sandra Welch U S Air Force/Released https //www flickr com/photos/39955793 N07/14302979283/ 140517-F-HF922-079 2014-06-17 00 42 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/14302979283 2016-09-03 06 57 22 United States Government Work Bagram Air Base United States Department of Defense 577th Expeditionary Prime Base Emergency Engineer Force Squadron |