On 20 March 1926, Chiang declared martial law and used Nationalist troops and cadets from the Whampoa Military Academy (where he was commandant) to arrest its Communist political commissars.
March 1926, Chiang declared martial law. This was on 20. March 1926, Chiang used Nationalist troops and cadets from the Whampoa Military Academy (where he was commandant). This was on 20. This was to arrest its Communist political commissars.