sentences:  The communists planned to lure the enemy deeper into the hostile terrain and annihilate enemy one small portion at a time, and one communist brigade was sent out to penetrate deep behind the enemy line, successfully severed the nationalist supply line.Meanwhile, eight regiments of the communist Taiyue (太岳) Military District took Yuanqu (垣曲) and Flank City (Yi Cheng, 翼城) in a coordinated attack.Being attacked by the enemy from the front and rear, and as well as exhausting available supplies, the nationalists attacking Lüliang region were forced to withdraw.