Air Force Staff Sgt. David Chorpenning teaches Marines from Marine Light Attack Helicopter Squadron (HMLA) 269 and Marine Wing Support Squadron (MWSS) 274 how to brush their teeth during survival evasion resistance and escape (SERE) training near Mountain Home Air Force Base, Idaho, March 15, 2018. HMLA-269 and MWSS-274 conducted the training exercise to improve the squadrons' capabilities in cold-weather environments. Chorpenning is a SERE specialist with the 366th Fighter Wing. ( Marine Corps

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