Nie Rongzhen
Zhou's work at Whampoa came to an end with the Zhongshan Warship Incident of 20 March 1926, in which a gunboat with a mostly Communist crew moved from Whampoa to Guangzhou without Chiang's knowledge or approval. This event led to Chiang's exclusion of Communists from the Academy by May 1926, and the removal of numerous Communists from high positions in the Nationalist Party. In his memoirs, Nie Rongzhen suggested that the gunboat had moved in protest of Zhou Enlai's (brief) arrest.