第1857章 地听之法(1 / 2)

地道攻城的战术是屡见不鲜的,尤其是在长期的攻防战之中,攻城的一方久攻不下,就会采用挖地道的方式来进行偷袭,绕过城墙的防御,直接杀入到城内。

只不过地道攻城的方法相对来说风险巨大,不确实的因素太多,所以没有成为攻城的一种主流方式。

如果吴军真得采用地道攻城的方法,那么在挖掘到护城河下的时候,显然是出现了透水的现象,整个地道被水给淹没了,护城河的水往地道里面灌,所以才会出现漩的现象。

不过王昶并没有庆幸于吴军的失败,因为他想到如果吴军要利用地道来偷袭寿春,那就肯定不会只挖一条地道,这条地道出现了问题,并不代表其他的地道也会出现问题,很可能其他的地道已经挖进了城里。

王昶不禁是惊出了一身的冷汗,如果不是自己的这个意外发现,恐怕寿春城内出现了吴军的大队人马,他们还蒙在鼓里呢。

王昶立刻派人去城池的四周查看护城河的情况,尤其是要注意护城河里有没有出现漩涡。

不过得到的回禀是他们仔细地查看过了各段的护城河,都没有发现漩涡的存在,那怕是最小的那种漩涡也没有看到,最多也是水花四溅的场面。

越是没有发现,王昶便越是心惊,毕竟越是表面上越是平静,暗地里便是愈加地暗流汹涌,天知道吴军一共挖了多少条的地道,又有多少地道会挖到寿春的城内。

寿春城可不是一般的城池,它是一座州城,方圆几十里的距离,现在吴国大军围城,王昶已经将大部分的守备力量都投入到了城墙的防守之中,所以在城内巡逻和守卫的军队数量是极为稀少的,其作用也仅仅只是起到安民的作用。

如果吴军大批的人马突然出现在寿春城内,彼时城内城外的吴军里应外合进行夹击的话,那寿春城岂不危矣?

王昶是眉头大皱,吴军的这一招真是防不甚防啊,毕竟谁也不可能知道吴军地道的出口将会设在何处,也就是说吴军可能会从城内的任何一个地方冒出来,就算王昶加强城内的戒备,派兵来回的巡逻,也不可能做到无死角的防范,百密终有一疏,那怕是有一处地方出现疏漏,后果便是不堪设想的。

如何才能做到料无遗漏的防范呢,王昶苦思冥想,也想不出一个万全之计来,于是趁着吴军夜晚停止进攻的时候,王昶将众将召集到一处,商讨破解的对策。

众将一听,无不骇然,如果城小的一点的话,还可能派兵在城内加强防范,但寿春城如此之大,大部分的兵力都集中城墙上,应对吴军大规模的进攻,所以能抽调出来进行城内巡逻的兵力十分的的有限,确实是很难做到面面俱到。

更何况,谁也不知道吴军什么时候在什么地方破土而出,那怕真就是派兵在城内的每一处地方驻防,面对未知之敌,真是难以应对啊!

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