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Photo by: Rodrigo Abd

U.S. Army soldiers provide cover for a medical evacuation Blackhawk helicopter taking off with soldier wounded by a hidden bomb during a patrol by the 1-320th Alpha Battery, 2nd Brigade of the 101st Airborne Division near COP Nolen, in the volatile Arghandab Valley, Kandahar, Afghanistan, Friday, July 23, 2010. (AP Photo/Rodrigo Abd)

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