Gunnery Sgt. David Rubio, aviation ordnance chief with Headquarters and Headquarters Squadron, participates in a pull up event during the Frozen Chosin Competition at Marine Corps Air Station Iwakuni, Japan, Feb. 25, 2016. Teams consisting of six members completed a series of events including a pull up and sit up contest, a 5K supply run, a 600 meter swim, 250 meter sprint then constructing and presenting professional military education. The competition is set to resemble the rigorous struggles Marines faced during the battle of the Chosin Reservoir in 1950. (U.S. Marine Corps photo by Lance Cpl. Aaron Henson/Released)
<br>Unit: Marine Corps Air Station Iwakuni
Lance Cpl. Aaron Henson
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