What were the challenges faced by the allied powers during world war1?

During World War I, the Allied Powers faced several significant challenges, including a vast and diverse front that stretched their resources thin and complicated coordination among various nations. They also dealt with the tactical stalemates and trench warfare, which led to high casualties and morale issues. Additionally, the Allies had to manage supply shortages and economic strains, as well as the political complexities of uniting different national interests and strategies. The entry of the United States in 1917 provided a crucial boost, but the ongoing challenges tested the Allies' resolve throughout the conflict.