The Second Battle of the Marne (July 15 - August 6, 1918) was the last major German Spring Offensive on the Western Front during WWI. The German attack failed when an Allied counterattack led by French forces and including several hundred tanks overwhelmed the Germans on their right flank. The Allies had taken 29,367 prisoners, 793 guns and 3,000 machine guns and inflicted 168,000 casualties on the Germans. The primary importance of the battle was its morale aspect: the strategic gains on the Marne marked the end of a string of German victories and the beginning of a series of Allied victories that were in three months to bring the German Army to its knees.