BARBED BATTLE U.S. Air Force Academy Basic Cadet Evan Rowley crawls under barbed wire in the Jacks Valley assault course near Colorado Springs, Colo., July 21, 2009. Basic cadet training started June 25 and continues through Aug. 1, 2009. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 920908-K-STX77-663.jpg Photo Gallery