JOINT BASE ELMENDORF-RICHARDSON, Alaska -- Senior Airman Justin Haken, an emergency management specialist with the Alaska Air National Guard’s 176th Civil Engineer Squadron, instructs fellow 176th Wing Airmen on proper gas mask handling procedures here Jan. 10, 2014. This type of combat skills training helps Guard members prepare to respond to potential chemical weapons attacks. National Guard photo by Tech. Sgt. Jennifer Theulen