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Soldiers with the U.S. Army's 506th Infantry Regiment, 4th Brigade Combat Team, 101st Airborne Division out of Fort Campbell, Ky., board a plane as they begin their journey home upon completion of their year-long deployment Thursday, Aug. 4, 2011 at Forward Operating Base Sharana in Paktika province, Afghanistan. The 4th Brigade Combat Team was the last brigade to deploy as part of President Obama's 30,000 troop surge. (AP Photo/David Goldman)