92 years ago today, on June 7, 1933 (May 15, 1933 in the lunar calendar), Zhang Guotao killed senior leaders of the Red Fourth Front in a row. Quan Jixun was killed in Hongkou Field, Tongjiang County, Sichuan Province. In the summer of 1933, Zhang Guotao once again carried out a "counterinsurgency" in the Red Fourth Front Army. Yu Dusan, Quan Jixun, and Shu Yuzhang were killed successively. Yu Dusan, in December 1930, was appointed by the Central Committee of the Communist Party of China to serve as the political commissar of the Fourth Army of the Chinese Workers and Peasants Red Army in the Revolutionary Base of Hubei, Henan and Anhui. In February of the following year, he was elected as a member of the special committee of the Communist Party of China in Hubei, Henan and Anhui. In May of the same year, after Zhang Guotao arrived in Henan and Anhui, the Red Fourth Army was reorganized. He was transferred to the political commissar Kuan Jixun, who joined the Sichuan Army in his early years, served as the commander and acting brigade commander of the Seven Mixed Brigade of the Sichuan Army and the River Defense Army. In June 1929, he led the Seventh Mixed Brigade in the uprising in Pengxi County, Sichuan Province, and served as the commander-in-chief of the Sichuan First Route Army of the Chinese Workers and Peasants Red Army. He has served as the commander of the Fourth Army, the vice chairperson of the Communist Party of China's Revolutionary Military Commission in Hubei, Henan and Anhui, and the commander of the 25th Army of the Red Army. After the Red Fourth Front Army entered Sichuan, he served as the chairperson of the Provisional Revolutionary Committee of Sichuan and Shaanxi Province. Shu Yuzhang, who graduated from the Ten Japanese Non-commissioned Officers School, entered the Huangpu Military Academy after returning to China and participated in the Northern Expedition. Later, he was sent by the Central Committee of