ACST: Night operations training
Tech. Sgt. William Lipsett, contingency skills instructor for the U.S. Air Force Expeditionary Center's 421st Combat Training Squadron, teaches deploying Airman about night operations and night vision devices during a class session in the Advanced Contingency Skills Training Course 09-2 Oct 29, 2008, on Fort Dix, N.J. ACST is a pre-deployment training course hosted by the Expeditionary Operations School of the USAF EC. (U.S. Air Force Photo/Staff Sgt. Paul R. Evans)