* The German advance was stopped. The German troops were exhausted and demoralized, and they were forced to retreat to their starting positions.
* The Allies regained the initiative. The French and British armies were now in a strong position, and they were able to launch a counter-offensive that eventually led to the end of the war.
* The United States entered the war. The American Expeditionary Force (AEF) arrived in France in 1917 and played a major role in the Allied victory.
* The war came to an end. The Second Battle of the Marne marked the beginning of the end for the German war effort. The Allies were now on the offensive, and they were able to win the war in 1918.
Significance of the Second Battle of the Marne
The Second Battle of the Marne was one of the most important battles of World War I. It was a turning point in the war, and it led to the eventual Allied victory. The battle is also significant because it marked the beginning of the American Expeditionary Force's involvement in the war. The AEF played a major role in the Allied victory, and its arrival in France helped to turn the tide of the war in the Allies' favor.