Japanese-American citizens were denied their rights and sent to internment camps, as the government believed that some of them were working with the Japanese government, and could feed intel back to them. At the end of the war, however, these citizens were released.
The United States eventually won the war. This showed other countries that even in the worst situations the country could hold it's own.
Answer:
West Virginia
Explanation:
The U.S. state of West Virginia was formed out of western Virginia and added to the Union as a direct result of the American Civil War (see History of West Virginia), in which it became the only modern state to have declared its independence from the Confederacy.