How was the second battle of the marne a turning pointin the war?

The Second Battle of the Marne, fought in July-August 1918, marked a critical turning point in World War I as it halted the last major German offensive on the Western Front. The Allied forces, bolstered by fresh American troops, launched a successful counteroffensive that pushed the Germans back, leading to significant territorial gains. This defeat weakened German morale and military capabilities, ultimately contributing to the collapse of the Central Powers. The battle signaled the beginning of a series of Allied offensives that would lead to the end of the war later that year.