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Senior Airman Kevin Kohan, an 11th Civil Engineer Squadron Explosive Ordnance Disposal journeyman at Joint Base Andrews, Md., performs the Extended Cross Knee Crunch Metronome of the EOD Tier 2 Physical Fitness Test Prototype at Dover Air Force Base, Del., Aug. 8, 2018. Kohan was one of more than 20 Airmen to participate in the EOD Tier 2 test prototype development. (U.S. Air Force photo by Staff Sgt. Damien Taylor)
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