 The final objective was Maryang San , a steep hill rising 200 metres ( 660 ft ) above the valley about 2 @,@ 500 metres ( 2 @,@ 700 yd ) north of Hill 355 . However , following the delay in capturing Hill 355 , Hassett would not be ready to implement his plan until early the next day . As such the third phase would begin on 5 October , with the Royal Northumberland Fusiliers scheduled to attack an intermediate objective — Hill 217 , adjacent Kowang @-@ San — before assisting the Australians assault Hill 317 . The Australians moved into position northeast of Hill 199 on the afternoon of 4 October , while over the night of 4 / 5 October the divisional artillery hit Chinese positions , with two batteries of 8 @-@ inch ( 200 mm ) howitzers and another two 155 @-@ millimetre ( 6 @.@ 1 in ) batteries supplementing them . Air strikes by the Mustangs of No. 2 Squadron , South African Air Force were also planned , targeting Chinese concentrations north and west of the objectives to cut @-@ off supplies and reinforcements . Both the Australians and Fusiliers were scheduled to begin their attacks at first light — at 05 : 45 — following a heavy artillery preparation . 
 The final objective was Maryang San , a steep hill rising 200 metres ( 660 ft ) above the valley about 2 @,@ 500 metres ( 2 @,@ 700 yd ) north of Hill 355 . However , following <a href='None' title='1'><mark>the</mark></a><a href='negative_concord' title='2'><mark>delay</mark></a> in capturing Hill 355 , Hassett would <a href='negative_concord' title='3'><mark>not</mark></a><a href='negative_concord' title='4'><mark>be</mark></a> ready to implement his plan until early the next day . As such the third phase would begin on 5 October , with the Royal Northumberland Fusiliers scheduled to attack an intermediate objective — Hill 217 , adjacent Kowang @-@ San — before assisting the Australians assault Hill 317 . The Australians moved into position northeast of Hill 199 on the afternoon of 4 October , while over the night of 4 / 5 October the divisional artillery hit Chinese positions , with two batteries of 8 @-@ inch ( 200 mm ) howitzers and another two 155 @-@ millimetre ( 6 @.@ 1 in ) batteries supplementing them . Air strikes by the Mustangs of No. 2 Squadron , South African Air Force <a href='uninflect' title='5'><mark>were</mark></a> also planned , targeting Chinese concentrations north and west of the objectives to cut @-@ off supplies and reinforcements . Both the Australians and Fusiliers <a href='uninflect' title='6'><mark>were</mark></a> scheduled to begin their attacks at first light — at 05 : 45 — following a heavy artillery preparation . 
Da final objective was Maryang San , a steep hill rising 200 metres ( 660 ft ) above the valley bout 2 @,@ 500 metres ( 2 @,@ 700 yd ) north of Hill 355 . However , following no delay in capturing Hill 355 , Hassett would ain't ready to implement his plan until early tdanxt day . As such the third phase would begin on 5 October , w/ thdaoyal Northumberland Fusiliers scheduled to attack an intermediate objective — Hill 217 , adjacent Kowang @-@ San — before assisting the Australians assault Hill 317 . The Australians moved into position northeast of Hill 199 on thedaternoon of 4 October , while over the dae of 4 / 5 October the ddasional artillery hit Chinese positions , with 2 batteries of 8 @-@ inch ( 200 mm ) howitzers and another tw255 @-@ millimetre ( 6 @.@ 1 in ) batteries supplementing em . Air strikes by the Mustangs of No. 2 Squadron , South African Air Force was also planned , targeting Chinese concentrations north and west of the objectives to cut @-@ offf supplies and reinforcements . Both the Australians and Fusiliers was scheduled to begin their attacks at first light — at 05 : 45 — following a heavy artillery preparation .