sentences:  The nationalists then concentrated all available firepower to bombard the enemy position with an area around a hundred square metres at the hilltop at a rate of more than 30 rounds per minute, and under the cover of intense artillery shelling, the nationalist New 6th Army under its commander Liao Yaoxiang (廖耀湘) attacked the hill from three sides in the east, the south, and the west.After beating back the nationalist attacks for six times, it was obvious reinforcements were needed.The communist 10th Brigade was ordered to reinforce Pagoda Mountain (Ta Zi Shan, 塔子山) but they were delayed when crossing the Liao River, and this was the most important reason that caused the eventual abandonment of city.