The answer is 30 cm cubed
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.
Proponents claimed the acts were designed to protect the United States from alien citizens of enemy powers and to stop seditious attacks from weakening the government
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Possible answer: Its most significant consequence was the entrance of the United States into World War II. The US had previously been officially neutral but subsequently entered the Pacific War, the Battle of the Atlantic and the European theatre of war.
explanation: unsure of context