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Ma Zhanshan, a general in the Chinese Army who had surrendered in January 1932 and joined the Manchukuo regime, rebelled again in late April, forming his own volunteer army in Heilongjiang province at the beginning of May, and then he established another 11 troops of volunteers at Buxi, Gannan, Keshan, Kedong, and other places and thus established the Northeast Counter-Japanese National Salvation Army with Ma appointed as Commander-in-Chief, with the other volunteer armies as subordinates, at least in name.