The Airman Battle Uniform (ABU) replaced BDU as a general fatigue uniform, the latter having been discontinued after 31 October 2011. The ABU was issued to Airmen deploying as part of Air Expeditionary Force 7 and Air Expeditionary Force 8 (AEF 7 / AEF 8) in Spring 2007. In October 2007, ABUs were issued to enlisted Basic Trainees at the Basic Military Training School (BMTS) at Lackland AFB, Texas, and became available for purchase at AAFES outlets by the rest of the Air Force in June 2008.