U.S. Marine Corps Lance Cpl. Jonathan Galletta, a motor transport vehicle operator with Security Cooperation Task Force (SCTF), Africa Partnership Station 2011 (APS-11), exits a gas chamber at Marine Corps Base Camp Lejeune, N.C., Feb. 1, 2011. Marines with SCTF completed their annual gas chamber qualification and mask confidence exercise in preparation for an upcoming SCTF APS-11 deployment.