Squadron Signal books US Military Motorcycles of WWII, Walk Around. During WWII, the United States turned to Harley-Davidson and Indian Motorcycle Company to produce military-worthy motorcycles. Additionally, other Allied powers looked to these companies for bikes through the Lend-Lease program. As a result, Harley-Davidson produced the WLA, the U and UA, and the shaft-drive XA. Indian provided the 340-B and the 741, and the shaft-drive 841. While the WLA, U/UA, 340-B, and 741 saw extensive military use, the shaft-drive bikes from both companies never saw combat. The advent of the Jeep took over the motorcycle's role in military service, and the bikes were relegated to veteran vehicles of the past. Illustrated with over 200 color photographs, 11 black-and-white photographs, 80 pages.