America was not prepared for WWI. With only 200,000 soldiers and a lack of combat arms, soldiers trained with wooden guns! There were only 200,000 American troops available, but by war's end American forces totaled 4.8 million. On the 11th hour of the 11th day, November 11, 1918, the war was over, and an unready America had shown it could go to war and be victorious!