 <unk> a counter @-@ attack , the Australians on Hill 199 began digging @-@ in , however no such attack occurred . D Company subsequently returned and was allocated a position between C Company and the Borderers . C and B Companies both received shelling during the day , wounding two men . At 10 : 00 A Company — under Captain Jim Shelton — took over the defence of Hill 199 , and B Company went into reserve behind A Company . According to plan a troop of Centurion tanks and a section of medium machine @-@ guns were then moved up onto Hill 199 and began directing their fire onto the northern slopes of Hill 355 in support of the Borderers . Meanwhile , at 07 : 15 , following preparation by artillery and mortar fire , the lead British assault companies had begun to advance on Hill 355 . However , with the Chinese expecting an assault from that direction , the initial British moves met strong resistance and the Borderers were forced to withdraw and <unk> . At 14 : 15 a second assault reached the objectives on the lower slopes , and these gains were consolidated by nightfall . 
