Zheng Xuannian already knew that Datang had mastered something called "cement".
This stuff is similar to seasoning, mixed with mud to form a paste, and the soft mud will turn into hard rocks within a day.
Mud is easy to shape, but has no protective ability.
Stones have protective capabilities, but building city walls is not easy.
But the Forbidden Army, which owns cement, can now have both.
Quickly build the shape of the city wall with mud, and then overnight, the mud will become as solid as a rock.
That's right, it was just such an exaggeration in one night.
Perhaps just one night of drying is not enough for the cement wall to completely dry, but its protective capabilities are enough to make any cavalry and infantry sigh.
That was enough, the fortress was built.
At this moment, it is really an extremely heavy topic.
but……
After Zheng Xuannian finished speaking, Yeon Gaesumun seemed to have no pressure at all. He still smiled and said, "This action is quite fast. It is really a wonder in the world."
There is nothing wrong with Yeon Gaesomun’s description.
It took more than ten days - this is an exaggeration, in fact it may only take a few days - to complete the construction of the city wall and the erection of a simple camp.
Such high efficiency is indeed a miracle in this era.
but……
Isn't Goguryeo here to attack others now? Why is Yeon Gaesumun still so calm? This is too arrogant.
"hehe."
Seeing everyone's expressions of surprise and confusion, Yuan Gaesumun smiled slightly.
"Are you worried that the camp is strong and easy to defend but difficult to attack?"
"But haven't you heard that the dangers of mountains and rivers are not enough to strengthen a country? No matter how strong the camp is, how can it bring real peace?"
Yeon Gae So Moon said this.
Jieli Khan, Zheng Xuannian and others were all stunned.
Damn it, this is too natural to say.
Some of you have heard of the allusion just now, some of you have never heard of it, but this sentence is really a famous article on state governance. Not to mention Zheng Xuannian, Jieli Khan, and even Yili Zhen who is behind him have heard it.
Does this make sense? Of course it does.
But the problem is...
Goguryeo sent a large army all the way, and it was not an ordinary army. They came out in dozens of large ships.
Food and grass are consumed, and personnel are sent to war. The standing army is not engaged in production. This actually has potential lost wages. To put it simply, these people actually occupy the productive population, and they are all young and middle-aged. The total material production of the country is
Descending...
Is it possible that this man who has worked hard on an expedition to fight is just relying on this sentence?
But now the fortress is already there. If you can't attack it, you can't attack it.
If you come to read this sutra at this time, isn't it nonsense?
At this moment, the faces of Jieli Khan and others could not help but show a look of astonishment, with three words written all over them.
This person...
seriously?
However, although Yeon Gae So-moon was smiling, he was not joking at all.
Seeing everyone's expressions of confusion, he immediately said.
"The danger of mountain streams is certainly not something to rely on. But since it exists, we still have to pay attention to it."
"At present, the Tang Army's fortress will definitely not be broken by a force attack."
After Yuan Gaisuwen said this, the shock on the faces of Jieli Khan, Zheng Xuannian and others relaxed.
After all, if you think about it, the Tang Army has come to blows in your face, and you are still saying that you don't have these things, but it turns out that Yeon Gaesumun knows about this problem, so that's okay.
The next step is... what to do?
The key is what to do.
At this time, Yeon Gaesumun's eyes suddenly became bright, and then he showed a meaningful smile and said,
"Although the fortress is dangerous, you must not forget that although the fortress is strong, it is still a camp. After all, the Tang Army's ships cannot stay in the fortress forever after they sail out."
"oh?"
When Yuan Gaisuwen said these words, Jieli Khan, Zheng Xuannian and others all frowned and fell into deep thought.
It's impossible to stay in the fortress forever...
So what are they planning to do?
Sending troops to colonize the fields... This was an ancestral system of the Han Dynasty. What else is there to say? To open up a border, it was necessary to colonize the fields.
But Yeon Gae So-moon obviously didn’t understand it that way.
"Don't forget how it started and how it happened."
"The Tang Dynasty went to sea this time because Li Sheng led Li Er's order and brought the treasury's assets to Hangzhou to build more than ten shipyards before completing this huge fleet."
"Training sailors on the way...Hangzhou is the heart of the Jiangdong area, and there has always been no shortage of people who are familiar with the nature of water, and Li Sheng spent extra time and energy on training."
"After all this effort...could it be that the Tang State's intention was to come to the South China Sea to occupy a palm-sized island to serve as a military town?"
As Yeon Gaesumun said these words, the half-smiling expression on his face became clearer and the smile became more obvious.
And when he smiled, Jieli Khan and others were immediately stunned.
This idea...
"People may build cities and fortresses, but ships... will not stop forever. If the Tang army has so many large ships, they are not used to carry goods. How can they be used to look good?"
Yeon Gaesumun smiled slightly, "And these ships will still be used sooner or later, whether it is private merchants or the Tang Dynasty court, spending so much treasury revenue to build them must generate profits. What should we do at this time? This
Ships must be used to carry goods and generate income.”
"So although I'm not talented, let me guess... this time the Tang Kingdom's labor expedition came to this far south, it must be for some kind of benefit. There must be other places near the camp..."
Although Yeon Gae Suwen spoke softly, his tone was very firm.
"If it weren't for the gold and silver mines hidden on the island, there must be other benefits..."
When he said this, Jieli Khan, Zheng Xuannian and others on the side suddenly showed horrified expressions.
This speculation is so amazing...
As Yuan Gaisuwen said, if it is fake, then why did the Tang Dynasty court spend so much money? Why did the Tang court spend so much energy because Li Sheng was as wise as a demon and was the most knowledgeable in the world, ancient and modern.
And if it's true...
That ghost knows how much profit there is here.
Just in case any gold or silver mine is discovered...
Apart from anything else, for Goguryeo, at least in the next few years, the economy will be very solid.
Needless to say, if you just spend money on smuggling and buying grain at the border crossing, you will probably be extremely wealthy for more than ten or twenty years.
And abundance is even secondary.
Because with this extra annual income and extra food supply, Goguryeo...
This will leave you with enough energy to build your own grenade factory.
This is the most crucial part!
No wonder...
Now, Jieli Khan understood why Yuengai Suwen would not hesitate to use the huge wealth in the treasury to build so many large ships and come all the way to deal with the Tang Dynasty...