4th Cavalry Multi-functional Training Brigade Observer Coach/Trainers prepare to monitor a convoy operations lane during CSTX 91-18-01, July 15, at Fort Hunter Liggett, Calif. 3rd Battalion, 381st Regiment trained on the lane, with opposition forces from C Company, 2nd Battalion, 3rd Infantry Regiment, 1-2 Brigade Combat Team, 7th Infantry Division. (U.S. Army photo by Sgt. 1st Class Gary J. Cooper / 4th Cavalry Multi-functional Training Brigade)