Li Er's words were full of confidence, and it was obvious that he had developed a strong interest in the method of killing people with poison.

You should know that poison has never stopped since ancient times, but the difference is that the former is very difficult to obtain because of the particularity of poison, so the cost is quite high. Compared with ordinary soldiers who successfully use poison to kill, it will be a loss for the poisoned person.

Since the birth of pesticides, this means that poisons can actually be mass-produced. Li Er also heard another meaning from the words of Zhang Yi and Sun Simiao, that is, the cost seems to be quite low.

In his opinion, since the cost can be effectively controlled and mass-produced, it is obviously much more cost-effective to kill people with poison than to use Tang sergeants to fight for their lives.

After all, after the rebellion at the end of the Sui Dynasty, the population of the Tang Dynasty is actually very short of people. Not only does the army need people, farming, business operations and even many other places also require a large population.

However, the population is not like crops. The harvest will be sown again next year. It starts with the birth of a baby. According to the age of 6, a man from the Tang Dynasty will take sixteen years.

However, even so, the natural disasters, illnesses and other reasons in the past sixteen years may cause the child to die in the middle of the journey, so for the Tang Dynasty, every male student is a huge fortune.

Zhang Yi naturally cleared Li Er's idea very much. Since it was easier and could defeat the enemy without any casualties, then the war between humans and lives would naturally be of no benefit.

To be honest, if Zhang Yi felt that he would probably consider this way from Li Er's perspective, it would be natural to put Sun Simiao under house arrest.

As the saying goes, a small person is not a gentleman but a man is not a man, and he can do such a decisive thing. Although in Zhang Yi's opinion, Li Er's personal morality is a disadvantage, it has to be said that he has the decisiveness and wisdom that he must possess as an emperor. The most important thing is that Li Er can always grasp the key and use it to the extreme according to his own favorable aspects!

"Your Majesty, let alone whether we can use pesticide methods to make large amounts of poisons that can poison thousands or even tens of thousands of people. Even if it can, have you ever thought that others would use the same method to deal with us?" Zhang Yi said sincerely to Li Er: "Since there were wars in history, we have only followed a relatively open and honest fighting method.

For example, the main battle in the initial stage was to rely on the courage of the main general. At that time, there was a name called Dou General. As long as the general who fought won, morale would be high, otherwise the morale would be low. Such a battle between the main generals would be enough to affect the end of the battle!”

"Yes, this kind of fighting method of fighting generals in the Spring and Autumn Period was indeed the mainstream!" Li Er nodded, recognizing Zhang Yi's words, and then said: "However, at the end of the Battle of the Han Dynasty, this fighting method with military generals as the core was gradually replaced by wisdom, such as borrowing arrows from a straw boat and empty city strategy... At this time, although military generals still had a certain advantage, in fact, the use of wisdom and strategy had already changed the pattern of battle silently.

Zhang Yi, since the ancients could innovate, why can't I? You said that the enemy can also use poison to fight, I don't agree with this! My Imperial Hospital can be said to be a good doctor in the world at the hospital. Even if there are strange people like Sun Simiao, it is an exception. If you want to reach the level of my Tang Dynasty, no matter which country or tribe, I will fight or not!"

Li Er's words were so powerful that not only the evolution of the combat methods, but also the analysis of the national strength battle clearly, which undoubtedly made Zhang Yi applaud almost on the spot.

This is the most flexible use of knowing oneself and enemy in military tactics! Just by this point, the name of Li Erjun strategist is definitely worthy of his name!

However, Zhang Yi immediately retorted: "Your Majesty, you said that other countries are impossible now, and you don't have the ability to develop poisons. I agree very much with this point, but have you ever thought about another possibility?" As he said that, Zhang Yi's face became more cautious, and he looked around carefully. He lowered his voice until he saw that the room was empty and said to Li Er: "Are you afraid of being a plague or a plague?"

"Dare they?" Li Er was shocked and immediately blurted out his words.

But then there was the yi array's silence without any resurrection.

Li Er was very clear that no matter at any stage of the war, he actually followed one rule, that is, the people-oriented rule. This sentence may be ridiculous, but in fact it is exactly the case.

Usually when the two sides fight, no matter when the outcome is determined, they will be vacant for a period of time to restrain the corpses of the soldiers in their respective camps. In addition to respecting the dead, the biggest reason is to eliminate the possibility of plague.

Using poison to kill the enemy is undoubtedly a precedent. If someone or a country dares to do this, it is conceivable that other countries will inevitably use the same or more vicious means to achieve the goal of victory.

As Zhang Yi said, other countries, whether it is Goryeo, Tubo, or Turks, do not have the relevant capabilities and cannot develop poisons that can be used for large quantities in combat, but they still have some strange infectious diseases that the Tang Dynasty did not have. In Lingnan, which is a territory of the Tang Dynasty, there have been cases of robbery sores. Although it has been many years since then, the robbery sores are still in the Lingnan area.

Even if you don’t need to capture sores, the enemy only needs to slaughter a cattle and sheep in the water source on the border of the Tang Dynasty. As long as there is enough time, this low-cost plague will definitely cause countless casualties and injuries in the Tang Dynasty.

"Why!"

After connecting this point, Li Er's original confident expression immediately showed disappointment and sighed: "It seems that I am not very worried, but Zhang Yi, I hope you forget about this matter and don't mention it to anyone!"

"What's the matter?" Zhang Yi immediately looked at Li Er differently and bowed: "Your Majesty, I was just lost. What did you say have not heard!"

"You boy, hahaha!" Li Eryi slapped Zhang Yi on the shoulder, and then there was a smile on his face, and he said in a flash: "I saw the epidemic prevention law you handed to me a few days ago. It's very good. I have asked the prefectures to strictly implement it. But since you have already thought of a solution, why did you use Mr. Sun's name? Could it be that you have resentment towards me?"

ps: The first update is here, there will be a second update later, everyone wait!
Chapter completed!