炮声隆隆、硝烟弥漫,在枪林弹雨的战场上,士兵们希望借助可靠的掩体,提高战斗效率!当科技进步,战斗双方的火力大大提升,而移动能力和通信能力还没有重大突破时,双方士兵便掘土成壕,建起一道道固定的防线,在此基础上打响或明或暗的战争!经典案例——第一次世界大战战场重型火炮:就像空军支配着现代战争一样,炮兵支配着战壕战!火炮远离前线,不易被敌人引爆,却可以轰炸一敌方战壕内的士兵、设施,还能为发起进攻的己方步兵提供一定范围的火力掩护。当然,双方的火炮也时常互相射击,展开炮战! The guns rumbled and the smoke filled the air. Soldiers hoped to build their battlefields with guns and bullets. As science and technology progressed, the firepower on both sides of the battlefield was greatly enhanced and there was no major breakthrough in mobility and communication capabilities. Both soldiers Digging earth into trenches and setting up a fixed line of defense on the basis of which a war of overt or darkness can be started! Classic Case - WWI Battlefield Heavy Artillery: Just as the Air Force dominates modern warfare, artillery dictates Tug of War! A cannon is far from the front and not easily detonated by an enemy. It can bomb soldiers and facilities within an enemy’s trench and provide a range of fire protection for one’s own infantry who launched the attack. Of course, artillery on both sides often shoot at each other and start artillery!