How did general MacArthur contribute to UN success in the Korean War?

After North Korea invaded South Korea on June 25, 1950, MacArthur was appointed supreme commander of the U.S.-led U.N. force sent to aid the South. In September, he organized a risky but highly successful landing at Inchon, and by October North Korean forces had been driven back across the 38th parallel.

Explanation:

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.