The change of flag in Northeast China refers to the political turning point after the Huanggutun incident. At that time, Zhang Xueliang, the leader of Feng Zhi warlord who ruled Northeast China, electrified the whole country on February 29th 1928, announcing that he would abide by the Three People's Principles and obey the Nanjing National Government headed by Chiang Kai-shek. At the same time, he lowered the five-color flag of Beiyang Government in the northeast provinces and replaced it with the red flag of Nanjing National Government. The change of flag in Northeast China marked the end of the Northern Expedition, the "formal unification" of Nanjing National Government and the formal end of Beiyang Government.
The change of flag in Northeast China successfully declared the complete end of the rule of Beiyang warlords for 16 years. The change of flag in Northeast China frustrated the plot of Japanese imperialism to carve up and monopolize Northeast China, and safeguarded national interests and territorial integrity.
The influence of flag change in northeast China.
After the flag was changed, the Northeast China ended the situation of one party in the era of Feng Zhi, and directly obeyed the central government in military and diplomatic aspects. Although it maintained certain independence on some specific issues, it played a certain role in the establishment and consolidation of Chiang Kai-shek's regime, marking the final completion of Chiang Kai-shek's so-called "national reunification." It strengthened the resistance to Japanese aggression and delayed Japan's plan to establish a puppet regime in Northeast China. In this sense, changing the flag in Northeast China is also a patriotic act to resist aggression and safeguard national interests.
The change of flag in Northeast China has had a positive impact on China's social progress and economic development. The relatively peaceful northeast environment brought about by the change of flag in the northeast made Zhang Xueliang change the war policy of the Zhang era, and transferred domestic and foreign policies to the new construction of the northeast, which led to the rapid development of the northeast economy and the revitalization of the northeast national industry. The change of flag in Northeast China is undoubtedly the catalyst for the development of national industries in Northeast China.