E, C, and B. D doesnt make sense to help with that era.
Answer:
from wiki, it says its where a few people have power to control or command
Explanation:
Try looking it up on wikipedia if this doesn't help out
A failure because so many incidents so some consider it a failure
Answer:
On June 25, 1950, the Korean War began when North Korea, supported by the Soviet Union and China, invaded South Korea, which was supported by the United States. General MacArthur, leader of the United Nations forces, drove the North Koreans back across the divide, yet encountered a Chinese invasion.