Air Force Lt. Col. William Mercer, the 66th Training Squadron detachment 1 commander, briefs Congressional staff delegates about Arctic Survival Training School (Cool School) 18 April, 2017, at Eielson Air Force Base, Alaska. Cool School teaches the fundamentals of surviving in the arctic environment, everything from building a shelter to catching and cooking food. ( Air Force photo by Airman Eric M. Fisher)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: 168th, 354th, afb, air, alaska, arctic, base, congressional, cool, delegate, eielson, fighter, flag-alaska, force, guard, national, red, school, staff, survival, wing