Photo introduction: In July 1947, the Hu Zongnan Group of the National Army focused on attacking the Shaanxi-Gansu-Ningxia Border Region. Zhou Enlai, along with Mao Zedong, Ren Bishi and others, led the Central Committee of the Communist Party of China to withdraw from Yan'an and move to northern Shaanxi; in August, he served as Vice Chairman of the Central Military Commission and Acting Central Military Commission chief of staff.