 In the sector occupied by 1st Commonwealth Division , Chinese communist forces were dug into a group of hills overlooking the Imjin River . The division faced 6 @,@ 000 troops from the Chinese <unk> Division , 64th Army under the overall command of <unk> <unk> . The Chinese forces were divided into three regiments of about 2 @,@ 000 men each , with two regiments dug @-@ in in well prepared defensive positions with overhead protection , and a third regiment in support . The 28th Brigade faced one of the two forward regiments — the <unk> Regiment — which was deployed with one battalion on Hill 355 , a second battalion <unk> Hill 217 and Hill 317 , and a third battalion in reserve to the west . 
