BAGRAM REHEARSAL U.S. Army soldiers rehearse dismounting a CH-47 Chinook helicopter before a recent air assault operation on Bagram Air Field, Afghanistan, May 15, 2009. The U.S. soldiers, assigned to the 509th Infantry Division's 3rd Battalion, participated in a joint effort with Afghan soldiers and border police. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 613748-K-RNC33-602.jpg Photo Gallery