U.S. Air Force Master Sgt. Michael Doane, Train, Advice, Assist Command-Air flight equipment advisor and operations team superintendent, explains the TAAC-Air mission to Airmen assigned to the 455th Air Expeditionary Wing at Forward Operating Base Oqab, Afghanistan, Aug. 28, 2015. TAAC-Air trains, advises, and assists their Afghan partners in order to develop a professional, capable, and sustainable Afghan Air Force. (U.S. Air Force photo by Tech. Sgt. Joseph Swafford/Released)