U.S. Marines sort mail at Patrol Base Jaker. U.S. Marines with 1st Battalion, 5th Marine Regiment sort mail at Patrol Base Jaker in the Nawa district, Helmand province, Afghanistan, on Aug 23, 2009. The 1st Battalion is deployed with Regimental Combat Team 3 to conduct counterinsurgency operations in partnership with Afghan security forces in southern Afghanistan. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 510479-E-NPS31-358.jpg Photo Gallery