Emperor of the Tang Dynasty

Niu Jinda had already reached out his hand curiously and tapped the gray-white solid, and his expression suddenly became much more serious.

"so hard!"

From the touch point of view, it is indeed extremely hard, but because manpower is limited, Niu Jinda has no way of knowing how hard this thing is.

"Your Highness, what exactly is this?" Li Xiaogong asked.

Li You directly rolled over and sat on the city wall, and also knocked on the concrete under his body.

"This thing is called concrete. It is made by mixing cement, sand, and other substances. Its hardness is even higher than that of rock. It is the highest strength specification that has been produced so far!"

Although concrete has just come out and there is no measurement technology in the Tang Dynasty, it is difficult to accurately test the specific strength of concrete. Fortunately, this is not difficult for Li You.

With Li You's extremely terrifying masterpiece "The Nine Suns", even if he broke the rocks with his bare hands, he only needs to send someone to find the real granite, and then destroy the granite and concrete with the same force, and then compare the two. The degree of damage is enough.

At present, the concrete that Li You poured outside the city walls and gates is the highest level that is harder than unweathered granite!

"Concrete? Cement?"

Faced with the two new words that suddenly popped up, Li Xiaogong and others were at a loss.

Just when they wanted to ask questions, suddenly the bugle of the alarm sounded in the distance!

"No! Tubo is attacking!"

The expressions of everyone present changed. They didn't expect the Tubo to act so quickly. It seems that the Tubo's determination to go all out to capture Songzhou as soon as possible is stronger than they thought!

"Let's all go back to their respective posts," Li You instructed solemnly, "All members stick to the high ground of the city wall, and must not go out of the city to meet them!"

The first half of Li You's words made several generals respond, but the second half of the words made them stop in shock.

"What did you say? If we are passively defended like this, we will be completely at a disadvantage all of a sudden!"

Niu Jinda also said incredulously: "Why did Your Highness make such a passive decision? If the city wall and gate are broken, then Songzhou will be over!"

In the original battle of defending the city, there were probably two lines of defense. The first line of defense was the army that went out to meet them, and the second line of defense was the guards of the city walls and city gates.

Usually only after the first line of defense is completely defeated, they will retreat to the city, but now Li You's decision directly allows the Tubo army to skip the first line of defense, and also forces the Tang army to retreat directly to the second line Line of defense!

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This is a stupid decision made by laymen anyway, which made the three of them begin to deeply doubt-then "Thirty-six Strategies", was it really written by His Royal Highness the Prince?

"Don't worry," Li You explained with a smile, "It's just not necessary to go out of the city to fight, because they will never be able to break through the city walls and gates!"

This tough concrete, which is even harder than the brand new granite, is somehow higher than the original rammed earth wall.

The original rammed earth wall, as a city wall, is often collapsed, because the essence of the rammed earth wall is to compress a pile of yellow mud to the limit. Although it is very thick, its strength is particularly poor.

……

And now the concrete made by Li You is already far beyond the manpower and wisdom of this era. In other words, if the Tubo army can break through, I will lose!

"Therefore, you just need to be careful not to give the Tubos any chance to hang ladders and flying hooks, and ignore all the other attacks they make on the city walls and gates."

Li You continued to instruct, and he could see that Songtsen Gampo was in a hurry, so how could Li You miss this great opportunity?

He wants to consume the Tubo army alive!

"..."

The three generals looked at each other and gritted their teeth after being silent for a while.

Fight!

According to His Royal Highness's method to defend the city, there is actually another advantage, that is, the troops on the city wall have greatly increased, and it is basically impossible to successfully hang ladders and flying hooks.

So if the Tubo army wants to break into Songzhou, the only way is to break the city walls and city gates. Now, just look at the concrete of His Royal Highness, whether it is as hard as he said!

Success or failure is under this most critical factor!

Chapter 793 There is such a whimsical idea

In the Tubo military camp.

"Actually the entire army retreated into the city?"

Seeing Tang Jun's response, Songtsan Gampo and Lu Dongzan were both shocked.

"What is this operation?"

Lu Dong murmured incomprehensibly. Originally, he was already prepared and confident that he could deal with all Tang Jun's conspiracy and tricks.

Songtsan Gampo is the same. He had heard that the prince Li You, who was described by Ma Dongjia as not to be underestimated, came over, and together with the two famous generals of Songzhou, Li Xiaogong and Niu Jinda, he thought that there would be some amazing conspiracy.

As a result, it seems that Songtsen Gampo has seen the stupidest response, which really makes him feel that there is a big gap.

"Isn't this a trap?" Lu Dong said suspiciously like "Zero One San", "After all, this move is too unwise... Doesn't this mean that you are waiting to die?"

Songtsen Gampo shook his head and said, "It doesn't matter if he is a trap, as long as we can break through the city walls and gates unimpeded, then we will win! Even if there are any traps, it will be useless!"

"Your Majesty's words are very..."

Lu Dongzan nodded, and the fact is exactly the same.

By that time, Tang Guo has lost, then it will be useless even if there are more fancy strategies, everything will be irreversible!

"Haha... It seems that Li You, the prince of the Great Tang Dynasty, is just a false name! This is really God's help!"