Fighting continued throughout the winter, and early in 1918 the German Command, strengthened by divisions brought from the Russian front, decided to launch a massive offensive to gain final victory. On March 21, in the morning fog, they attacked, and supported by artillery from over 6,000 guns, advanced 14 miles within three days. In May, they drove the French Army back 40 miles. However, German losses were high, and the Allied armies, now joined by the Americans, launched a massive counter-attack, from which the Germans never recovered. On November 11, 1918, "the bloody war was over".