Snow Fire Army National Guard Staff Sgt. Jason Staff engages simulated opposing forces during winter training at Camp Ethan Allen Training Site, Vt., Jan. 31, 2017. Staff is an infantryman assigned to the Colorado National Guard’s Company C, 1st Battalion, 157th Infantry Regiment. Air National Guard photo by Tech. Sgt. Sarah Mattison SHARE: Download: Full Size (0.55 MB) Credit: Tech. Sgt. Sarah Mattison VIRIN: 170131-Z-KE462-0096C.JPG Photo Gallery