from the original company size. Communist troops of the 4th Column guarding the mount were exhausted and the nationalists seemed to be able to achieve their objective. At the last moment, communist reinforcement from the 1st Column and 4th Column arrived just in time and successfully destroyed the counterattacking nationalist forces. The nationalists, however, were able to successfully driven back the communist attacks headed by the communist 9th Column to the eastern half of Mount 540, but they were unable to prevent the communist 6th Column and 8th Column from attacking toward Lu Mountain after successfully destroying nationalist forces in the area. The communist 9th Column launched another offensive simultaneously against the eastern half of Mount 540, Mount 570, and the main peak of Menglianggu mountains, with a portion of its force attacking the nationalists, held eastern half of Mount 540 from the north and northeast, and the remaining forces attack the other two positions in the nationalist hands. By this time, the nationalist 74th Reorganized Division became disorganized and most units were fighting on their own after losing direct contact with the divisional headquarters over the phone, and orders and reports had to be sent via couriers and the few remaining radios. Due to the close proximity of the opposing sides and rapid enemy advance, the supplies and ammunitions airdropped by the nationalist air force in this stage of the war mostly landed on communist positions. The communists also utilized the prisoners-of-wars to operate the newly captured heavy artilleries pieces from the nationalists. The captured nationalist artillery crew was reluctant at the first and shelled the communist force attacking the nationalist position instead. After one of the artillery crew was executed in front of others, the prisoners-of-wars dared not to play anymore tricks and every round landed on its mark. By 08:00 on May 16, with nationalists strongholds at Eagle's Nest and Lu Mountain falling into the enemy hands', all nationalist positions on the surface with the exception of Mount 540 had fallen, and most of the defenders were forced into caves. At 13:00 pm, the communist 4th Column gathered five mountain guns and bombarded the eastern half Mount 540 while infantries advanced toward the nationalists held eastern half from the west. Meanwhile, the communist 6th Column also attacked the eastern half mount from the south. By 14:00, Mount 540 had fallen and the nationalist 51st Brigade was completely