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In this photo, Senior Airman Timothy Burnett, 51st Medical Group Aerospace Medicine Squadron bioenvironmental engineering journeyman, and Airman 1st Class Benjamin Thompson, 51st Civil Engineer Squadron emergency management apprentice, are assisted into their level A chemical, biological, radiological and nuclear protection suits as part of an exercise at Osan Air Base, Republic of Korea, Aug 4, 2015. The scenario is part of a week-long series of intense, integrated base emergency response capability training exercises for initial and follow-on responders.