衡阳之战是抗战中战时最长、伤亡最多、场面最惨的城市争夺战。为了扭转太平洋战场上兵败如山倒的厄运,打通大陆交通线,日本按照“一号作战”计划,逼近衡阳这个连接东南和西南的战略要地。无论是蒋介石,还是美军,无不心急如焚,担心日军真的像他们所说的那样三天拿下衡阳,致使西南重镇岌岌可危,美军机场灰飞烟灭。1940年6月20日,就在十万日军奉令进攻衡阳的同一天,国民 Hengyang war is war longest in wartime, most casualties, the scene of the worst city scramble. In order to reverse the defeat of the Pacific War on the battlefield and to open up the mainland traffic line, Japan is approaching Hengyang, a strategic location linking the southeast and southwest, in accordance with the “Operation No.1” plan. Whether it was Chiang Kai-shek or the U.S. military, all were anxious and worried that the Japanese really took Hengyang for three days, as they said, causing the precarious southwest town to destroy the U.S. airfield. On June 20, 1940, on the same day as 100,000 Japanese troops ordered Hengyang to attack Hengyang, they were nationals