TACTICS TRAINING U.S. Army soldiers use a rope ladder to board a CH-47 Chinook helicopter during a month-long joint operations and tactics course in the Gulf of Mexico, Aug. 5, 2009. The CH-47 crew is assigned to Task Force 160th Special Operations Aviation Regiment, Fort Bragg, N.C. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 165907-Z-DEU07-024.jpg Photo Gallery