Plenty of books tell the story of the Korean war.Mr Halberstam understood what it meant for America.Both sides thought they were fighting to unify a divided peninsula.

• 但美国大兵由于装备过重，被困在了河谷地区的崎岖道路上，加上平时很少行军，结果都成了山头上侦查美军后续部队的敌人手中的猎物。