The Sui Army seemed to be a temporary formation, but the core and main force was the Fifty-ninth Army, and the various units formed a whole with the Fifty-Nine as the axis.
Chen Kedi took two battalions of the 59th Army as the front army and stood guard with spears to build the first line of defense. Then came the crossbow battalion, standing behind the front army for long-range strikes. The 175th Army of the 59th Army