Quizlet should help.. look on there.
Because they lack the viciousness of normal revolutions. There are claims that they do not change all that much even though ti appears so because only in violent and ferocious revolutions can the institutions of power truly be changed, like what was seen in Russia during the Communist revolution.
Answer:
It was the location of the Yalu River boundary between North Korea and China. It served as the boundary between North Korea and South Korea. It marked the first site of North Korean aggression.Hope this helps.☺️