Lt. j.g. Eric Lopez, a physician assistant with the

Lt. j.g. Eric Lopez, a physician assistant with the 2nd Marine Expeditionary Brigade, checks the heart rate of a notional Norwegian soldier casualty during combat casualty care training in Rena, Norway, Feb. 17, 2016. More than ten Marines and sailors with the unit conducted simulated medical treatment onto their Norwegian counterparts in order to enhance and compare their field medical care capabilities. The two countries are coming together for Exercise Cold Response 16 in March, which combines the efforts of 12 NATO allies and partner nations to enhance joint crisis response capabilities in cold weather environments. (U.S. Marine Corps photo by Cpl. Lucas Hopkins/Released)