SWEATChrisHindros:Getty

A paratrooper in the First Brigade of the US Army's 82nd Airborne Division stands in summer heat after a parachute training jump August 6, 2010 at Camp Mackall, a training ground of Fort Bragg, North Carolina. The First Brigade, which just returned from a year-long tour in Iraq, were required to take the parachute jump as part the 82nd Airborne regulations in keeping all paratroopers' jump training current. By Chris Hondros/Getty Images.

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