 In total , <unk> 's forces lost about 830 killed in the attack , including 350 in Tamura 's battalion , 200 in <unk> 's battalion , 120 in <unk> 's force , 100 in the <unk> battalion , and 60 in <unk> 's battalion . An unknown number of wounded also died during the withdrawal march to the <unk> . On and around the ridge , the Marines counted 500 Japanese dead , including 200 on the slopes of Hill 123 . The Marines suffered 80 killed between 12 and 14 September . 
