SIDE WINDERS U.S. Air Force trainees navigate one of many obstacles during a basic training course on Lackland Air Force Base, Texas, June 30, 2010. In addition to fitness training and military studies, trainees learn fundamental Air Force information, including core values, customs and courtesies, and basic policies and procedures. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 902759-F-JWV37-341.jpg Photo Gallery