What role did African-American Soldiers play in the war? How were they treated when they returned?

While most African Americans serving at the beginning of WWII were assigned to non-combat units and relegated to service duties, such as supply, maintenance, and transportation, their work behind front lines was equally vital to the war effort.

The army remained rigidly segregated and the War Department relegated the majority of black troops to labor duties.

the answer is use of support