U.S. Air Force Airman 1st Class Alec Blackmon, with the 439th Air Expeditionary Advisory Squadron, provides security at Camp Oqab in Kabul, Afghanistan, July 16, 2013.
The base housed the 438th Air Expeditionary Wing which was responsible for advising the growing Afghan Air Force. (DoD photo by Master Sgt. Ben Bloker, U.S. Air Force). Original public domain image from Flickr