Rough Riders Aboard A Captured Russ Truck: there’s nothing like a joyride on a captured Russian truck. Here, GIs of the U.S. 1st Air Cavalry Division happily waved their own and captured enemy rifles as they rode atop a seized Russian truck in the Shau Valley in the northern part of South Vietnam. Other GIs on road gave them the “thumbs up” sign in celebration. The soldiers found this truck and three others in an enemy cache of assorted weapons while on Operation Delaware which seeks to invade the A Shau Valley, April 26, 1968