A decisive victory, Allied troops succeeded in forcing the Germans back to their original lines. As the fighting at the Marne waned around August 6, British troops were preparing for a second assault near Amiens. Battle of Amiens, (August 8–11, 1918), World War I battle that marked the beginning of what came to be known as the “hundred days,” a string of Allied offensive successes on the Western Front that led to the collapse of the German army and the end of the war. The first of these was launched in late July when French Marshal Ferdinand Foch opened the Second Battle of the Marne. By late July 1918 Allied forces held a