From left, U.S. Army Spc. Vilmary Natal, Spc. Jessica Isales and Spc. Jose Arroyo, all members of the 192nd Water Purification Section, 192nd Brigade Support Battalion, Puerto Rico Army National Guard, participate in Lightweight Water Purifier System Training at Cerrillos Reservoir in Ponce, Puerto Rico, Feb. 9, 2013. Soldiers training in the water recycling exercise helps to improve the unit's capabilities in the event of a state or federal emergency. (U.S. Army photo by Spc. Wilma Orozco/Released)