DUST DUTY U.S. Marines make their way back to their vehicles in the middle of a sand storm after patrolling a nearby mountain ridge in Bakwa, Farah province, Afghanistan, May 3, 2009. The Marines are assigned to India Company, 3rd Battalion, 8th Marine Regiment, the ground combat element of Special Purpose Marine Air Ground Task Force Afghanistan. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 787205-F-AYD11-283.jpg Photo Gallery