国共合作的分裂,破坏了国民革命力量的团结,削弱了中国的国防实力;而东北军在蒋介石唆使下入关参加内战,给日本侵略者侵占东北以可乘之机。历史证明,国共两党的分与合,关系到两党自身的发展与民族的兴亡,国共两党和,则国家民族兴;国共两党分,则国家民族危。 The split between Kuomintang and Communist cooperation destroyed the unity of the national revolutionary forces and weakened China’s national defense strength. The Northeast Army, under Chiang Kai-shek’s instigation, entered the civil war to enter the civil war and took advantage of the Japanese aggressors’ encroachment on the northeast. History has proved that the separation and cooperation between the two parties have a bearing on the development of both parties and the rise and fall of the nation. The two parties and the KMT and the CPC mean the nation is prosperous.