A U.S. Army CH-47 Chinook helicopter carrying  wounded veterans participating in Operation Proper Exit lands at Camp Nathan Smith in Kandahar province, Afghanistan, Feb. 27, 2013. Operation Proper Exit is an initiative of the Troops First Foundation and the USO that allows injured veterans to bring closure to their service.  (U.S. Army photo by Staff Sgt. Kristen Duus/Released)
Staff Sgt. Kristen Duus
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