Eight hundred forty-three AD
Ethnic tensions made the region vulnerable to conflict.
Answer:
After the end of the Cold War, Communism would also end in Mongolia, Congo, Albania, Yugoslavia, Afghanistan, and Angola. Today there are only 5 remaining countries in the world ruled by communist single parties: China, Cuba, Laos, North Korea, and Vietnam.
Explanation:
It resulted in the deaths of 1.5 to 2 million people from 1975 to 1979, nearly a quarter of Cambodia's 1975 population ( c. 7.8 million).
The US government's decision to develop a hydrogen bomb, first tested in 1952, committed the United States to an ever-escalating arms race with the Soviet Union.
