Liaodong border of Yan State. Pen, fun, and www.biquge.info

"Such a large defensive circle, it is really difficult to defend, the current Goguryeo people are gathering, in a few days, they will rush over, once they encounter our minefield and react, they will bypass our defense line and pass through other areas, this mine, will not move by itself." Guo Sheng put down the telescope in his hand and said worriedly. His sappers had already laid mines wherever they could. However, the number of his sappers was simply too small. The minefields laid out are already within their maximum range of capabilities.

In the back, Meng Fang was looking at a telegram. This telegram came from the General Staff.

"What's wrong?" Guo Sheng looked at Meng Fang curiously, because he also hoped that his minefield could cooperate with the opponent's artillery position to exert the greatest effect. In this case, it may be possible to resist the attack of the Goguryeo.

"This telegram, maybe you should take a look, this weapon will definitely not be a secret in the future." At this time, Meng Fang came over with a telegram and handed it to Guo Sheng.

"This. Some of them aren't so good. Is this the secret of your Qin army? At this time, Guo Sheng looked at Meng Fang and said. To be honest, he really wanted to see it. He was very curious about what kind of weapon made Meng Fang say with such a worried face.

"Look, there's nothing. It's poison gas. Chemical gas, after this use, everyone knows about it, and then let's talk about it. The Yan people have already used it once before. This kind of poison gas is known to anyone who has taken an advanced chemistry class. This is not a military secret at all. Meng Fang said to Guo Sheng.

"Look." Meng Fang handed the telegram to Guo Sheng as he spoke. Guo Sheng looked a little helpless. He quickly read the telegram.

"Yan Guoren has purchased a large number of chlorine tanks, which are obtained by using direct current to dissolve sodium chloride solution. That is, salt water, in which chlorine is a toxic gas, this gas is generally used in the chemical industry, of course, paper mills also use this thing, after all, it is relatively cheaper. The Qin state's waterworks also used this chlorine gas to purify the water. Meng Fang explained.

"Oh." Guo Sheng heard.

"The poisonous gas released by the Yan people last time is this poisonous gas, and our chief asked me to pay attention to this. It seems that this battle is interesting. Meng Fang said.

"Releasing chemical gas, how lethal is this thing?" Guo Sheng asked curiously.

"I don't know. Last time, it was released by the Yan people themselves, and it is estimated that only the Yan people know what is going on, and the Yan people can think of this. I think. Meng Fang paused.

"The effect should be about the same, otherwise, how could the people of Yan Kingdom think of using such a weapon that is not a weapon." Meng Fang said.

"So, I'll have to pay attention to it. After all, no one knows how powerful this thing is when it flows to the battlefield. It's terrible for us. Guo Sheng said. And he wondered how powerful this chemical gas really was. Can Yan Jun's large-scale use of chemical poison gas solve many problems?

"I think we still need to rely on us to complete the main line of defense, and now we definitely can't turn the tide of the battle with a few weapons alone." Guo Sheng continued. And Meng Fang was still thinking about it.

Jimo City.

"You saw it too. The people of Chu are like rats, they keep digging. Digging, it's like this every day, they just don't show their heads. When we attacked, they hid under the trenches and opened fire, but they could not reach them. When you enter the trenches, they fight you, and as a result, our casualties are very high. Zhang Yi said helplessly to his superior.

"It's not a way to go on like this." Xue Gui nodded and said.

"The Chu people have such a way of fighting, the plan is to besiege us to death, even if we don't fight, we have to confront them." Xue Gui said worriedly.

"This situation has to be broken." Xue Gui decided.

"But artillery, and all our current weapons, suddenly became useless in the face of such a siege. In addition, our numbers are small, and the other party is only besieged like this. Zhang Ying also said at this time.

"Everybody is trying to figure out how to solve this problem. Specific tactics, we have to think of. Xue Gui said.

"Well, I think, we can confront them and use trench tactics as well." At this time, Zhang Yi proposed.

"No, in that case, the amount of time it takes is very staggering. This is definitely not the result we had in mind. Zhang Ying shook his head and said.

"There's nothing I can do. If this kind of battle continues, the enemy will gradually infiltrate our side even if he digs trenches. You've also seen that our mines, barbed wire, only work when the enemy is charging, but with trenches, those layers of soil shield them from most of the threat of weapons. Despite the great threat of our firepower, the opposing side was covered by trenches. The effect is not very obvious. Zhang Yi said.

"Sir." Zhang Ying thought about it and said.

"Sir, what do we do with fire?" Zhang Ying put forward his own ideas at this time.

"If we dump a lot of fuel in a trench. It's the gasoline of Qin, I think, the problem can be solved. Zhang Ying proposed her own solution.

"No, I can't. In this case, the logistical supply requirements are too high. Our logistical supplies were delivered from the coastal area of Qi State. Once the merchant ships were transported, they would go south. If there is a steady stream of transportation, it is simply impossible. Xue Gui shook his head and said. Apparently he had rejected such an idea, and perhaps, fire attack could be effective for trenches. However, the amount of gasoline consumed is particularly large, which requires a lot of logistical supply, and South Korea cannot do this because their logistical supply is not too smooth. They can only do the general logistical supply of weapons, but it is impossible to mobilize more resources on a large scale.

"We can't just look at it like this and do nothing, and if we do that, it's very bad for us." Zhang Ying said. Xue Gui just nodded. They didn't say anything, and in the face of the trench, everyone felt that the weapons in their hands and the tactics were useless, and it was the first time they had encountered such tactics. Weapons are useless for them. Push it forward. There is simply no way. If they really want to fight, the cost of casualties will definitely be high and scary, and this is not something they can afford.

Faced with the trenches of the Chu army, they were at a loss. There is simply no good way to solve it. The trenches of the Chu army had the upper hand.