The first students to call themselves "Red Guards" in China were a group of students at the Tsinghua University Middle School who were given the name Red Guards to sign two big-character posters issued on 25 May - 2 June 1966 [REF].
Mao, concerned that these work teams were hindering the course of the Cultural Revolution, dispatched Chen Boda, Jiang Qing, Kang Sheng, and others to join the Red Guards and combat the work teams [REF].