The peaceful settlement of the Xi 'an incident became the key to reverse the situation and played an important role in promoting the re-cooperation and unity between the Kuomintang and the Communist Party. The Xi incident was a turning point in the transition from a revolutionary civil war to a national war. The Xi incident was a major turning point in the history of China, regarded as a major crisis to save the country and the people, and a historical turning point to stop the civil war and launch the war of resistance at that time.