Book excerpt: The story of an iconic model in the long history of Harley-Davidson motorcycles, the WLA, which was used by Allied forces during WWII, is told for the first time. Developed for the US Army's mechanized cavalry, it became the leading US military motorcycle of the war. It served the US armed services as a messenger and military police vehicle. The Red Army's motorcycle battalions, reconnaissance units of its tank armies, also used them as their primary vehicle. The armies of the Soviet Union, Canada, the United Kingdom, Australia, France, China, and Brazil also made use of the model and its variants. It is known today as the "Liberator"; discover the history and stories of individuals who rode this icon to war and why the model is now a favorite among civilian collectors.