All Army's Cultural Revolution Group and later the leader of this group. In addition, she was one of the four founding members of the Administrative Bureau of the Central Military Commission, which was formed in August 1967. In 1969, she was acceded to the 9th Politburo of the Communist Party of China, making her and Jiang Qing the first Chinese women to reach such a post of political responsibility. Ye was appointed a member of the CCP Central Committee and chairman of the administrative office of the Central Military Commission. Simon Leys considers that her accession to the Politburo, with the sole reason of being married to Lin Biao, is proof of the “decline of the regime". French Sinologist Jean-Luc Domenach characterizes her as: "a real educational background, the aspirations of midinette, the taste for money, the fear of her husband, an unlimited admiration for her son and finally panic in the face of danger." Project 571 and death During the Cultural Revolution, tensions between Jiang Qing and Lin Biao's faction escalated. According to Party documents, in early 1971, it was Ye Qun who asked her son Lin Liguo to assassinate Mao Zedong during his trip to Shanghai, as part of the plan known as Project 571. The attempt failed, as Mao suddenly changed his plans and returned to Beijing on the evening of September 12. This led to Ye Qun believe that the plan had been exposed. Following the failure of their plans, Ye Qun, Lin Liguo and Lin Biao decided to flee, but their daughter Lin Liheng revealed their escape plan to Premier Zhou Enlai. Presumably fearing to lose time, the Lin family, including Lin Biao, Ye Qun, and Lin Liguo, fled in a PLAAF Hawker Siddeley Trident, from Qinhuangdao Shanhaiguan Airport on September 13, 1971. Further information from the Party documents later released state: "the plane was making for the Soviet Union but was inadequately fueled for such a trip; it also had on board neither navigator nor radio operator. It crashed in Mongolia on September 13, 1971, burning to death all on board." However, according to the historian J. D. Spence, "this story is essentially beyond verification, since the photographs later released by the Chinese authorities are of dubious authenticity and details on Lin Biao’s exact plans and on the other plotters are blurred" The government narrative also does not sufficiently explain how and why Lin