The first official theatrical release depicting America's part in World War One. Shot by the U.S. Army Signal Corp, the film is entirely comprised of authentic footage taken under actual combat conditions in France between 1917-1918. Includes scenes of President Wilson signing the Declaration of War, the arsenal of weapons developed and used by the United States, German U-Boats sinking freighters, the retaking of Catigny, Chateau Thierry, Selleau Wood, Soissons, St. Mihiel, Meuse-Argonne, and the Southern rail line through the Sedan.