RAVINE REACH U.S. Army 1st Lt. Troy Peterson, right, assists his radio operator, Pfc. Justin Cobbs, across a ravine during a dismounted patrol near Combat Outpost Mizan in Mizan district, Zabul province, Afghanistan, Aug. 16, 2010. Peterson and Cobbs are assigned to Company F, 2nd Squadron, 2nd Stryker Cavalry Regiment. The soldiers spoke with residents to assess their needs and survey the security of the area. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 824698-S-HOJ61-917.jpg Photo Gallery