In June 1928, Zhang Zuolin, the last ruler of the Beiyang government, was killed alive by dynamite planted by the Japanese on a train back to Fengtian from Tianjin, at the age of 53. This incident was later called the "Huanggutun Car Bombing Case" and caused a sensation around the world. In the face of the Japanese attacks, Zhang Zuolin was unwilling to join the crowd, angered the Japanese officer Kawamoto Daisaku, and planned the case. But hearing the news that Zhang Zuolin was killed, the Japanese emperor was furious, and Japanese Prime Minister Yoshiichi Tanaka sighed and said: "It's all over", for the Japanese, this should be a good thing, but then the Japanese prime minister and general resigned.

Zhang Zuolin was born as a bandit and a backbone Chinese man with 100,000 troops under his command, and was the most powerful warlord in the Republic of China period, and the three northeastern provinces were in his hands. The Japanese government wants to support Zhang Zuolin as a puppet and control the northeast, Japan has always had ambitions for China's three northeastern provinces, and japan, which is poor in resources, has always been red in the railways and minerals of the northeast. They racked their brains to find out how to obtain benefits in the northeast, and there were two opinions in Japan, one side believed that Zhang Zuolin should be bribed and supported as a puppet, and the other side believed that Zhang Zuolin should be eliminated to prevent future troubles. Kawamoto, the mastermind of the "Huanggutun Car Bombing Case," believed that Japan should be tougher and take the initiative to attack, not to raise tigers.
The fierce personality of Kawamoto Daisaku did not care about the persuasion of his subordinates, and had an iron heart to blow up Zhang Zuolin. Kawamoto Daisaku was naturally belligerent and strong, and when making a decision, he was ready to be dismissed, and he wanted to get rid of Zhang Zuolin, and the three northeastern provinces would fall into chaos and then take the northeast. However, what Kawamoto did not expect was that Zhang Xueliang rushed to the northeast overnight after hearing the news, controlled the army, and did not let the Japanese plan succeed, and Zhang Xueliang's move posed a great threat to Japan.
This incident caused an uproar in Japan, and Kawamoto's plan was not approved by his superiors; the Japanese War Department and political parties have always been at odds with each other, and there are great internal contradictions. In order to restore international trust in Japan, Japanese Prime Minister Yoshiichi Tanaka immediately investigated, but in the face of the emperor's interrogation, Tanaka Yoshiichi succumbed to the pressure of the military to conceal the truth of the matter, and was later exposed by the other party, at this time the generals who supported Daisaku Kawamoto began to shirk their responsibilities and blame each other, and the Japanese emperor became angry. After the "Huanggutun car bombing case", Japan was very strongly criticized internationally, in order to calm the public opinion brought about by this incident, the Japanese prime minister had to step down, and the relevant ministers and generals also resigned, but these did not change the outcome of the matter. Kawamoto was unrepentant and eventually died in the war criminals management center.
From the perspective of the history of Sino-Japanese relations, the Huanggutun car bombing case is the prelude to the 918 incident, the damage caused by the Japanese to the Chinese can never be indelible, as a Chinese must always remember history, shame and courage.
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