Allied commanders wanted to use American troops as a reserve, but Pershing wanted his soldiers to enter the battle as an army? Why was that so important to him?

Pershing was a strong believer that American troops should stay in units independent from other nations of the allied forces. The reasons for this is unclear though there was a clear sense of Patriotism involved and even Nationalism.

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.

aa dikha du tujhe mera wala dance