sentences:  As Chengde in the north and Beijing in the south were both threatened by the communist success, the nationalists were forced to redeploy three armies and two divisions from Huailai and Yanqing to Pinggu, and along the railroad from Huairou to Beijing to boost the local defense.In order to disperse the nationalists, the communists redeployed their forces.Three independent divisions of the communist Hebei – Rehe – Liaoning Military District and the 3rd Column of the communist II Corps were organized into Right Flank Corps to penetrate into Pinggu region, while the communist 4th Brigade of the 2nd Column and the communist 4th Column were organized into the Left Flank Corps to strike eastern Hebei.