TRAINING EXERCISE U.S. Army soldiers with 1st Squadron, 4th Cavalry Regiment, 4th Infantry Brigade Combat Team, 1st Infantry Division (Mechanized) wait for the order to move out during a convoy exercise at the National Training Center on Fort Irwin, Calif., Nov. 7, 2006. SHARE IMAGE: Download Image: Full Size (0.09 MB) Photo By: VIRIN: 956580-U-STS62-288.jpg Photo Gallery