U.S. soldiers and airmen of the CERFP (CBRN - Chemical, Biological, Radiological, Nuclear - Enhanced Response Force Package), Colorado National Guard, and the 152nd Air Wing, Nevada National Guard, assist a mock victim during a natural-disaster training scenario, July 24, 2013, at the North Metro Fire Rescue District Training Center in Northglenn, Colo., as part of the 2013 Vigilant Guard Exercise. Vigilant Guard, hosted by the Colorado National Guard, is a large-scale, multi-state, multi-agency exercise focused on inter-agency coordination in preparation for emergencies and catastrophic events in Colorado. (U.S. Army National Guard photo by Spc. Zach Sheely/RELEASED)