There is no need to repeat the tragedy of the siege war, generally as long as the two sides are bent on attacking and defending, and at the same time, the city cannot be broken for a while and a half, then the next stalemate and tug-of-war are logical.

Of course, under normal circumstances, the side defending the city will have an advantage, after all, it occupies the geography and sometimes includes people, that is, most of the people in the city will be on their side, and occasionally they can play a big role, and if they are used well, they may even become the key to determining the final outcome of the war; In addition to some inherent disadvantages, the besieging side also needs to make adequate preparations beforehand, and those special equipment that are indispensable for the siege, such as ladders, turrets, stone throwers, ramming trees and even shields ready to resist bows and arrows in the city at any time, need to be prepared in advance.

Of course, the corresponding defender of the city also needs to prepare in these aspects, such as arrows, stones, wood and other ordnance, as well as the necessary material reserves for the long-lasting defense of the city, otherwise there will be chaos inside without external forces.

Of course, if the besieging side wants to reduce casualties, it can't just press the army forward and climb upwards with its head down, and the best way is to complement each other, actively attacking the city during the day and breaking the city at night.

The use of the inside and outside should be combined, luring the enemy out of the city to annihilate it, burning, flooding, digging tunnels to the city, camouflaging the opponent's reinforcements to open the city gate, etc., are very common siege methods, of course, this is mostly for the kind of big cities that are really difficult to break, fortified cities, such as Xiangyang City, Luoyang City, Chang'an City, etc., these places themselves have material reserves, ordnance reserves are rich enough. As long as there is no complete loss of hope, then it is easy to hold on for more than half a month, and if the besieging side insists on attacking the city every day, it is likely to fill the moat or trench with a mountain of corpses.

Of course, Gucheng is not as big as those famous fortified cities, and it is not very big, but after all, it is located in a special location, and it is not easy to break through after many reinforcements and transformations in the two periods of Dong Zhuo and Lu Bu. What's more, Valley City is not an isolated city. Whether it is from the side or from the back, there can be support at any time; On the other hand, on the side of Ma Chao and Li Ru, although the morale of their soldiers is sufficient, and they are unexpectedly difficult for Cao Xing, after all, the number is not large. Even if it's just the number of people to consume with the defenders in the city. You also have to consider the possibility of consuming one of the opponent's defenders. Most of the people on their side have to pay a price of one and a half or even more than two, so the number of people is even more insufficient, and it is likely that they will suffer in the end. Therefore, if you want to break the city at the lowest cost, it is inevitable to use it.

Of course, it is necessary to use a plan, and it is also necessary to take into account the actual situation, for example, the geographical environment where Gucheng is located, flooding is impossible, and the current weather, attacking with fire will not play a big role, so you can only find another way.

The days that followed became a time of wits and courage between the two sides, and the defenders of the city were bent on holding only on the city, thinking of fighting each other on it; The besieging side naturally thought about how to break through the city at the lowest cost, and then enter Luoyang, so they did everything they could, and all kinds of tricks were repeated here.

With Li Ru's wisdom, he naturally knows how to use the people, things, and things that can be used by Yiqiē to be the original guard of this valley city, maybe he can't bear to go out of the city when he is greedy for merit, and then step into the trap of the other party; It is also thanks to Cao Xing, although he seems to be a sleek and shortcut person, but when it comes to such a necessary moment, he can always remain calm and vigilant, so what countermeasures the other party uses at night, even if it is tempting, it is almost equivalent to the moment when nearly 10,000 people are placed there to make the appearance of a lamb to be slaughtered, he only has one sentence: "Stick to it!" ”

As the so-called caution is not a big mistake, and now the most heartfelt response is naturally to stay in the city, Cao Xing is certainly not a person who is willing to be like this, this is not an attitude of not seeking merit but seeking no fault, he is obviously not, but he is rational enough, and he wants to take revenge on Ma Chao and others in his heart, but he will not lose his square inch because of this, and he is so hot-headed that he gives up one of his current most advantageous places, anyway, he is not in a hurry.

Of course, this alone is not enough, it is only during the day, but at night we must be more vigilant, and if necessary, we need to take the initiative.

Cao Xuan didn't dare to guarantee that there would be no other party's meticulous work in the city, this kind of thing was difficult for even Jia Xu's spy team to completely investigate, the only thing that could be done was to be cautious and cautious, careful and careful, so before the chaos in the city spread, it had been directly contained by the guards scattered around and patrolling closely with the shadows in the city.

And after a few days, Cao Xuan was dangerous and dangerous to find a hole in a corner not far from the city gate, at that time even more than a dozen enemy soldiers had come out, and the other party immediately found that he and others were discovered, since there was no way to lure the enemy deeper, Cao Xuan immediately decided to send a group of 500 people to encircle and suppress, and then blocked the entrance to the hole, finally cut off the other party's idea of entering the tunnel, but since then the patrolling soldiers have one more task, That is to monitor the situation on the ground, especially those with relatively soft soil, after all, it is difficult to say whether the other party will have a second comeback, and you must not take it lightly, otherwise Li Ru will definitely not mind teaching Cao Xuan what is called "failure is success its mother".

Compared with the natural advantage of geography in siege warfare, in the process of defending against the enemy's other means of attacking the city, the defenders in the city are mostly at a disadvantage, not only need to be vigilant at all times, guard against the opponent's sneak attack, but also often in a passive situation, because they don't know when the other party will do something, they can only carefully explore everywhere at all times, so that in case of any accidents, they can respond in the shortest possible time.

The situation on the battlefield is changing rapidly, and once the war starts, any detail may be used, so we have to be cautious, so that the spirit is always tense, which is naturally not a good thing, so although Cao Xing is not anxious, he also needs to constantly comfort his subordinates, so that they can calm down a little, and even carry out some transfers in a small area to avoid mental exhaustion affecting the battlefield.

However, after a few days passed, seeing that the other party seemed to have nothing to do with his side, even if Cao Xuan was always reminding and oppressing, his subordinates still inevitably relaxed, and it became more and more intense, and even Cao Xuan himself had some signs of this.

He didn't think that Ma Chao and Li Ru were really not worth mentioning, after all, ordinary soldiers and even some low-level generals didn't know, but he himself knew very well, don't look at the fierce fighting between the two sides these days, but in fact, whether it is the defending side or the opposite side attacking the city, the real losses are not much, which means that the other party may also be deliberately restrained.

The reason why Cao Xuan relaxed a little was just that he felt that no matter what tricks the other party was playing, even if there was another team that bypassed Gucheng and approached Luoyang, as long as the two army leaders on the opposite side were still there, he didn't need to worry, as long as he dragged them in this place, what could the leaderless Xiliang army do?

As a barrier to the west of Luoyang, Gucheng can play such a role, not to mention that Jia Xu is in charge of Luoyang Cao Xing has no doubt, let alone want to break through, it is difficult to pose any threat to it without a certain number of people.

However, there is a good saying, it can be said that the world is unpredictable, people are just human beings in the end, especially people like Cao Xing, who only care about the front of him, would never have thought that the change happened when he didn't know it at all, and it could even be said that it was overnight, at least the day before, he also received an order from Luo Yang.

"What, you said that Luoyang City was breached by an unknown army, and the military advisors are all gone?"

At this moment, an urgent report was made outside: "The enemy camp outside the city is empty, and not a single ...... has been found"

Another damn overnight! (To be continued......)