The basic idea of the economic war has been determined by the two before, mainly to focus on salt, use the remaining large amount of salt in the Tang Dynasty, dump it in Tubo, and attack the local salt manufacturing industry in Tubo, and then when the Tubo people abandon their salt manufacturing industry and use all the low-cost salt of the Tang Dynasty, the Tang Dynasty can immediately send troops to Tubo.

At that time, they only need to suddenly stop the supply of salt to Tibet, and the Tubo people will immediately be chaotic, and then the country will be in chaos, and it will be a nationwide turmoil, and they don't believe that those Tubo soldiers can still fight the Tang army on the border with peace of mind!

Salt was a necessity and should be the focus of their main attack, while others, such as domesticating Tibetan mastiffs, were then sold at low prices to the Tibetan aristocracy.

By the way, most of the soldiers in the Tibetan army were in the hands of these noble leaders, and when there was a war, the various leaders would gather the soldiers and then go to the designated place to assemble.

The Tibetan mastiff itself is a product of the Qinghai-Tibet Plateau, and is deeply loved by the locals, if they can tame a batch of Tibetan mastiffs, and then give them or sell them to those Tibetan nobles at a low price, then the Tibetan mastiff will inevitably become the new favorite of some nobles.

There is a saying that it is easy to go from thrift to luxury, and it is difficult to go from luxury to thrift.

Once those big nobles and big leaders like to have fun, then the training of the army soldiers will inevitably be slack, in this way, the combat effectiveness of the Tubo army will naturally drop a notch, and the Tang soldiers will be able to occupy an advantage when facing the Tubo soldiers in the future.

Not only these, Zhang Yi and they also plan to use some inconspicuous things to slowly disintegrate Tubo's own industrial chain, and when the war begins, as long as the Tang Dynasty stops supplying Tubo, then Tubo's industrial chain will inevitably collapse.

Don't underestimate the industrial chain, he is like a chain, as long as you break one of the links, then the whole chain will be wasted, even if the rest of your chain is good, it is useless.

Once Zhang Yi and their plans were successful, they would not even need the Tang army to attack Tibet, and the Tibetans would be willing to surrender themselves.

The two of them roughly stated their method to Li Er, and after Li Er felt that it was no problem, he asked the two of them to carry it out immediately.

Zhang Yi and Xu Jingzong walked out of the palace silently, and they were silent all the way, until they walked outside the palace, and the two looked at each other and breathed a sigh of relief.

If Li Er in the past would not have done anything to these heroes if he had any scruples or other reasons, but now Li Er has become too much, and he has become a pure emperor.

And when Zhang Yi and Xu Jingzong left, a soft voice came from behind Li Er.

"Your Majesty, is it really good to treat Zhang Yi like this?"

The eldest grandson still likes to follow Li Er as before, but now that he is almost in the production period, he can't serve Li Er, and he can't stand by Li Er's side, so he can only lie behind.

"There's nothing good or bad, even if he hates me, for the sake of Datang and the people, I have to do this, besides, you don't know Zhang Yi, this kid, if you don't come in a way that threatens him, he won't be obedient at all."

Can you bear to watch his talents go to waste, can you bear to watch him think about how to make money and become a rich man all day long? ”

Li Er's words, the eldest grandson had no answer, she knew that Li Er was forced to do this, and no matter what Li Er decided, the eldest grandson would support him unreservedly!

Sure enough, people will change, in fact, compared to a founding monarch like Liu Bang, Li Er is still good, at least Cheng Biting, Jin Qinqiong and other people who follow him are alive and well.

It's just that the current Li Er, for the sake of his career and the Tang Dynasty, has completely used people as tools.

And here, Zhang Yi quickly said goodbye to Xu Jingzong and returned to Zhangjiazhuang.

Because the two of them had already said the plan in front of Li Er just now, and the two of them had made a coordination, who should do what had already been divided, and then they just needed to do it according to the plan.

And Zhang Yi's return to Zhangjiazhuang this time was the last time he returned to Zhangjiazhuang before completing the task.

Tonight, he will stay at home for one night, and early tomorrow morning, he will rush to the frontier with Xu Jingzong.

Back in Zhangjiazhuang, Zhang Yi still needs to prepare a lot of things.

This time, he and Xu Jingzong have a lot of authority, but they can't reveal their identities, as the top secret task of the Tang Dynasty, the content of the task can only be rotten in the stomach by the two of them, so this time out of the fortress is equivalent to going on an expedition.

The first thing Zhang Yi did when he came back was to ask Wang Wu to gather some of the former soldiers in the Zhuangzi, and then select some capable men to be his guards and go out with him, and those who were selected would also stay at home with their families for one night tonight.

The matter of the escort team was settled, Zhang Yi also asked Lao Zhong to stay in Zhangjiazhuang, and asked him to contact Bu Fatzi, and when the time came, they would find a way to follow him to the frontier.

This time, although Datang sold salt to Tubo at a low price, the business opportunities were still very big, and the more dangerous the place, the more profitable, so Zhang Yi planned to pull the fat man to do it with him.

Tubo's abundant cattle consumption and some other things, presumably, are still very attractive to the fat man, if he can make good use of Zhang Yi's relationship and make a few more trips, he will definitely be able to make a lot of money.

As for Zhang Yi's proposal, the fat man has never refused, so Zhang Yi wants to leave the old bell in the mansion, and when the fat man comes over, let him prepare it immediately.

In addition to these, Zhang Yi also prepared some other things, and also asked Yue Shiyi to prepare some things, after all, Yue Shiyi is now his own personal guard.

When Zhang Yi returned to Zhangjiazhuang, it was only in the afternoon, and when he arranged everything, he found that it was already dark.

Tonight's dinner was uncomfortable, and the atmosphere was a little dull, although Zhang Yi had repeatedly adjusted the atmosphere, but the dinner table was still a little depressed.

But fortunately, it was finally over, and after eating, Zhang Yi didn't take a walk, and went back to the room directly after running to take a bath.

This will be the last time he's been at home during this time, so he'll have to be diligent.

And tonight Zhang Yi is also out of the way, in addition to Yang Su, whose belly has slowly become bigger, Zhang Yi also pulled Yun'er over.

Looking at the two shy women on the bed, Zhang Yi rushed forward with a cruel smile.

"Tonight, it's officially started!"