Joint military members with the Wisconsin Chemical, Biological, Radiological, Nuclear and High Yield Explosive Enhanced Response Force Package Medical Group prep a soldier for a sked drop over the side of a building as part of the 2018 External Evaluation exercise at Volk Field Air National Guard Base, Aug. 16, 2018. The ExEval is conducted as a way to re-validate the WI CERFP to perform its CBRN Response Enterprise mission in support of the State and Nation.(U.S. Air National Guard photo by Tech. Sgt. Mary E. Greenwood)