Answer:
The answer is A : States had the power to refuse to enforce federal laws.
The correct answer is daimyo, samurai, and shoguns.
Cities developed professional firefighting and police forces.
The purchase of Alaska from Russia.
Answer:
causes of the Korean War the spread of communism during the Cold War, American containment, and Japanese occupation of Korea during World War II.
"[...]course Korea shall become free and independent."- Yalta Conference [<em>early 1945</em>]
Most obvious consequence of the Korean War was the near total devastation of North Korea's economic and agricultural infrastructure.
