Answer: better leadership, foreign aid, knowledge of the land, and motivation.
Kim II-Sung invaded South Korea. He informed both the Soviet Union and China since they were his allies.
The Selective Service Act or Selective Draft Act authorized the federal government to raise a national army for the American entry into World War I through the compulsory<span> enlistment of people</span>
During the Cold War, there were many proxy wars and the war in Afghanistan was one of them. The two parties fighting within the country were either supported by the U.S. or Soviet Union. As a result, the U.S. provided weapons to the jihadists against the Democratic Republic of Afghanistan who were supported by the Soviet Union. Later, Muslim extremists got a hold of these weapons and terrorist groups formed.
