Senior Airman Tony Pauline (center), gets geared up for a chemical agent training exercise with help from Staff Sgt. Yaoska Quintana (left) and Staff Sgt. Jonathan Moroz (right) in the Memorial Tunnel at the Center for National Response in Gallagher, WV., March 17, 2015. All three Airmen are members of the 779th Aerospace Medical Squadron at Joint Base Andrews, Md. (U.S. Air Force photo/Senior Airman Joshua R. M. Dewberry)