In 1916, the United States was embroiled in a conflict with Mexican revolutionary Pancho Villa. They used Harley-Davidson motorcycles with machine guns mounted in the sidecars. In WWI, the first American to enter Germany one day following the signing of the armistice was riding a Harley-Davidson motorcycle. In World War II, when Harley-Davidson produced more than 90,000 WLA motorcycles. One-third of those bikes were sold to the Russian army, the rest went almost entirely to the U.S. military.