 On Hill 217 the Fusiliers had maintained the pressure on the Chinese throughout the day , however they were still unable to capture the feature . Regardless , the efforts of the Fusiliers in conjunction with A Company 's diversionary attack and the rapid advance of D Company with tank and artillery support had carried the day . A Company continued to attack against heavy opposition and indirect fire , slowly pushing the Chinese defenders back . Later , a platoon was detached to assist C Company consolidate the defence of Maryang San following its capture , while the remaining two platoons were withdrawn <unk> , again under heavy artillery fire . Indeed , although it had played a supporting role in the attack , the efforts of A Company had been vital , suffering 20 casualties while killing at least 25 Chinese and capturing two . Now with Maryang San captured the Australians began digging @-@ in , <unk> the south @-@ facing linear Chinese trench system into an all @-@ round defensive position with mutually supporting weapons pits . Fully expecting a Chinese counter @-@ attack that evening , <unk> moved the Assault Pioneer Platoon to bolster the hasty defences . Meanwhile , the Chinese still occupied three key <unk> positions — the ' Sierra ' feature , the ' Hinge ' and the summit of Hill 317 itself — which they continued to furiously defend . These would be the scene of considerable fighting in the days to come as the Australians attempted to clear them . 
