在抗美援朝战争中,中国人民志愿军成功地利用修筑坑道工事的方法与敌较量,不仅顶住了“联合国军”发动的由飞机、大炮和坦克组成的强大攻势,有效地保存自己的有生力量,而且大量地消耗了敌人的攻击力量。构筑以坑道为骨干的支 During the War to Resist US Aggression and Aid Korea, the Chinese People’s Volunteer Army successfully used the method of building the tunnel fortifications and its rivalries not only to withstand the powerful offensive of aircraft, artillery and tanks launched by the “United Nations Army” and effectively preserve its own viable forces, And consume a large number of enemy attack power. To build a tunnel for the backbone of the branch