Du Yuming was born in a feudal landlord family at the end of the Qing Dynasty, his father Du Liangkui was a man, he had been teaching abroad, and he had also participated in the League, at that time many intellectuals already had the consciousness of saving the survival of the people, Du Yuming liked to play with guns from childhood, the Huangpu Military Academy was established in the 1920s, Du Yuming resolutely chose to apply for the military school, and his cousin Du Yuxin was also a student of the first phase of the Whampoa Military Academy.
In 1925, Du Yuming came to prominence in the Crusade against Chen Jiongming, and Wu Baoshan, commander of the supplementary battalion of the Gao Guizi Regiment of the Second National Army, appreciated Du Yuming, so he hired Du Yuming as deputy battalion commander and first company commander at heavy money, Du Yuming had outstanding ability, and then he was also promoted one after another, and after the outbreak of the Anti-Japanese War, Du Yuming had been promoted to the commander of the 200th Division.
Du Yuming participated in many battles, during which it is very famous that Du Yuming, as the deputy commander of the first road, led the Chinese Expeditionary Force into Burma to fight, and once retreated from Savage Mountain to return home. After the victory of the War of Resistance Against Japan, Lao Jiang first asked Du Yuming to deal with the timely timing of Longyun's various units, and then dismissed Du Yuming as the commander-in-chief of the Kunming Defense and the commander-in-chief of the Fifth Army.
In 1948, Du Yuming was ordered to command the Liaoshen Campaign and the Huaihai Campaign, at that time Du Yuming lost consecutive battles, he felt that this was not normal, he felt that there was an internal ghost in the army, and the status was not small, so Du Yuming began to carry out secret investigation work, and then locked the suspect on Guo Rugui.
Guo Rugui is one of the thirteen Taibao of the Department of Civil Engineering, he is three years younger than Du Yu next year, born in a family of scholars, his father Guo Langxi in the imperial examination at the end of the Qing Dynasty, once ranked first in the Chongqing Governor's Case, and later Guo Rugui grew up, Guo Rugui wanted him to study medicine, but Guo Rugui entered the Huangpu Military Academy, was a student of the fifth phase of the Huangpu Military Academy, and then went to Japan to study.
Even in the War of Resistance Against Japan, Guo Rugui gradually entered the Kuomintang regime from an ordinary instructor at an army university, and after becoming acquainted with Chen Cheng, a close confidant of the old Chiang Kai-shek, he gained chen cheng's acquaintance, and the faction led by Chen Cheng in the Republic of China nationalist army was the "civil engineering department".
Chen Cheng, as one of the eight great kongs of Lao Jiang, had a relationship with Lao Jiang and his family, and the Kuomintang internally called him "Lao Jiang's stand-in" and "number two person", while Guo Rugui became the "military elite" in Lao Jiang's mind.
However, during the entire Liberation War, Guo Rugui repeatedly took risks and provided our party and our army with a lot of core military intelligence through Ren Lianru, who had long been engaged in the party's underground military movement work. In October 1948, on the eve of the Battle of Huaihai, He Yingqin put forward the proposition that "guarding the river must defend Huaihai", and Guo Ruzhi formulated a battle plan.
Before the plan could reach the relevant Kuomintang troops, Guo Rugui reached the command organ of the People's Liberation Army in return. Du Yuming later said in his article "The Beginning and End of the Battle of Huaihai": "I wanted to ask Guo Rugui why he did not withdraw to the vicinity of Bengbu according to the original plan, and while he was hesitating, when he saw Gu Zhu and his colleagues agree to Guo Rugui's report on this plan, he felt that it was useless to argue, and if a person was alone and quarreled, he would lose the favor of Old Jiang. ”
Du Yuming was suspicious of Guo Rugui, but suffered from the lack of real evidence, so Guo Rugui did not report like Old Jiang.
At the end of the 50s, when Du Yuming was seriously ill in bed, Guo Rugui came to visit him, Du Yuming flashed his words, and finally took Guo Rugui's hand and asked: "I seriously ask you one last time, are you a spy?" Guo Rujie's face did not change, and he answered with nine words:
"We only belong to different political views."