Complex sentence: Ma Chung-ying reappeared after a period of convalescence in Gansu, where he had amassed a large army through extensive conscription, as well as being appointed as Commanding Officer of the 36th Division of the National Army of China by the Kuomintang government in Nanjing.
Split into simpler sentences: Ma Chung-ying reappeared after a period of convalescence in Gansu, where he amassed a large army through extensive conscription. He was also appointed as Commanding Officer of the 36th Division of the National Army of China by the Kuomintang government in Nanjing.