Nuclear arms and military capability
The containment was successful in the Cold War when we were preventing Communism from spreading through Europe and Asia and also in the isolationism in the United States that limited its involvement in world affairs
Hope this helped
The Mandate of Heaven (or Tian Ming) is a political doctrine that the Zhou Dinasty implemented to justify the rule of the Emperor of China. The main idea was that there should only be one ruler of the country and he was on charge with the approval of the gods as the "<em>Son of Heaven</em>". If the ruler was unfair or didn't serve his people well, he could lose the Blessing of the gods and was consider to be bound to be removed from power (The cases in which the King was overthrown, or the people suffered any kind of natural disaster or famine were considered signs that the gods have removed the Mandate of Heaven).
