1975年春,全国四届人大之后,中央军事委员会常务委员粟裕受邓小平之命,下部队调查研究,了解情况。他决定先到华东,这是有用意的。当时王洪文、张春桥之流已分别窃取了军内要职,妄图插手部队,上海又是“四人帮”的巢穴。粟裕打算既实地观察了解“四人帮”插手 In the spring of 1975, following the Fourth National People’s Congress, Su Yu, standing member of the Central Military Commission, was under the command of Deng Xiaoping and his team investigated and learned about the situation. He decided to go to East China, which is intentional. At that time, Wang Hongwen and Zhang Chunqiao illegally stole their positions in the army in an attempt to join forces. Shanghai is also the den of the “gang of four.” Su Yu intends both to observe and learn about the “gang of four” to intervene