 Shantou was taken on 6 November, and by the end of 1925, the Nationalists controlled all of Guangdong province.Zhou's appointment as chief commissar of the First Corps allowed him to appoint Communists as commissars in four of the Corps' five divisions.Following the conclusion of the Expedition, Zhou was appointed special commissioner for the East River District, which placed him in temporary administrative control of several counties; he apparently used this opportunity to establish a Communist party branch in Shantou and strengthen the CCP's control of local unions.