 He participated in both the February and March actions, but was not the guiding hand in either event, instead working with A. P. Appen, the Soviet military advisor to the Central Committee, training the pickets of the General Labor Union, the Communist controlled labor organization in Shanghai.He also worked to make union strong arm squads more effective when the Communists declared a "Red Terror" after the failed February uprising; this action resulted in the murder of twenty "anti-union" figures, and the kidnapping, beating, and intimidation of others associated with anti-union activities.The third Communist uprising in Shanghai took place from 20–21 March.