How did the united states recruit and train the thousands of soldiers needed to make a difference in the war?

"For the United States to have a voice at the peace table, it had to make a significant contribution to the war effort," Neumann.

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .