Who helped the allies achieve the breakthrough in world war 1?

The Allies achieved a crucial breakthrough in World War I, particularly during the Hundred Days Offensive in 1918, with significant contributions from several key figures and nations. Notably, the United States provided fresh troops and resources, bolstering the weary Allied forces. Additionally, military leaders like General Ferdinand Foch, who served as the Supreme Allied Commander, coordinated efforts among the British, French, and American forces to execute successful offensives against German positions. This combined effort ultimately led to the collapse of the German front and the end of the war.