Iraqi army soldiers rehearse the initial movement from a U.S. Army CH-47 Chinook helicopter. Iraqi army soldiers rehearse the initial movement from a U.S. Army CH-47 Chinook helicopter prior to lift-off for an air assault operation from Forward Operating Base Remagen, Iraq, on March 31, 2006. The soldiers are from the Iraqi armys1st Battalion, 1st Brigade, 4th Division. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 625774-P-JLN49-664.jpg Photo Gallery