The main force was distributed in small groups of about 300 cavalry, which were distributed between the various cities and Liaodong City, and all the official roads and places near the official roads could pass through.

This period is not like the later generations have so many roads to follow, except for the main official roads, there are some small roads. And these trails have been told by villagers that almost all roads are blocked.

Although it was impossible to destroy more of the enemy's supply troops, it was also a very important strategic means in ancient times to hinder the enemy's scouts and communication between the two places, especially the excellent high-ranking generals of the entire Goguryeo.

The area of Goguryeo itself is not large, and 20,000 cavalry are spread over a land that is only about half the size of Liaoning in later generations, almost 80,000 square kilometers of land, which can be said to be very dense.

There were about seventy cavalry squads, and the average area of each cavalry squad was only 1,100 square kilometers, that is, a rectangle about 30 kilometers wide and 40 kilometers long.

This also involves removing the vast number of unreachable primeval mountains, cities, and many villages in this area.

This means that the area in charge of each cavalry squad can run back and forth almost every day, and with such a high density, if Goguryeo does not send a large number of troops to clear it, it can be said that the scout should not want to contact the front line at all, unless he can fly over.

Even if they were lucky enough to really bypass so many cavalry to reach the front line of Liaodong City, these scouts would have to return to Pyongyang or the Black Bone City on the front line of the Yalu River, and the probability was almost zero.

Dozens or hundreds of scout teams were released in a row, but after seven or eight days without coming back, Yuan Gai Suwen knew that something was wrong.

Yuangai Suwen's expression also became more serious than ever, and he felt that it was tricky.

Because of the 20,000 cavalry...... It's too hard to handle.

That's 20,000 generations of armored cavalry! Although it was not a heavy cavalry in the true sense of the word, according to the accounts of the soldiers who fled, the horses on these cavalry were not fully protected, but only protected by armor in key areas, and most areas were still unprotected.

But the knights on the horse were heavily armored cavalrymen, all equipped with bows and arrows, long knives, etc., and even they seemed to see the crossbows that the other party was carrying.

With such a disposition of force, if heavy cavalry is also sent to chase after it, it will not be able to catch up at all, but if you send light cavalry with faster mobility, it will not be able to stop the opponent.

The arrows in the opponent's hands alone will cause heavy losses to the light cavalry they sent out! Although Yu Ling's record on the front line of Silla was stable and good, Yu Ling did not hide the situation on the battlefield.

Yuangai Suwen saw the arrows shot by the Tang Dynasty...... That kind of three-edged armor-piercing iron arrow is simply a devastating kill for light cavalry! The point is that the number of strings in their light cavalry is much lower than that of Datang, because the 20,000 cavalry of Datang were transferred from Hanhai Prefecture!

That's the nest of the Turks, and the 400,000 Turks at their peak couldn't take the Tang Dynasty, not to mention that at least half of the Turks have become soldiers of the Tang Dynasty now!

And the bows and arrows in their hands have all been replaced with Datang's strong bows, how can this be fought?

Yuangai Suwen felt a sense of restraint with his hands and feet, and the 20,000 cavalry directly hit their seven inches!

It's too difficult to deal with, if the two sides fight head-on, does Goguryeo have the means to limit the 20,000 heavy cavalry? Yes! Goguryeo can now make up 20,000 heavy horses, the problem is that he has already sensed it from the opponent's actions, and the opponent will not fight them at all.

But now he's going to have to give it a try anyway.

"Someone, herald." Yuangai Suwen said loudly.

The generals in the room immediately stood up.

"Order, Hu Jin, the general of Wugucheng (Houfengcheng), led eight thousand heavy cavalry and two thousand light cavalry out of the city to destroy the enemy's heavy cavalry, but it is not allowed to pursue too far, and if the pursuit is close to a hundred miles, it will be withdrawn directly." Yuangai Suwen took a deep breath and gave the order.

He always had to try anyway, but he couldn't afford to lose 10,000 cavalry. Therefore, he did not allow them to pursue too deeply, and once the enemy quickly assembled, 20,000 heavy cavalry surrounded these 10,000 cavalry, and it would be good to be able to run out a third of them.

After Yuangai Suwen gave the order, a group of cavalry quickly set out from Pyongyang and headed straight for the city of black bones at great speed.

And at this moment, Li Shiji, who was far away near Liaodong City, was a little surprised to find that the impact of these 20,000 cavalry was far greater than they imagined!

In particular, the connection between the first line of Liaodong City and the rear of Goguryeo was cut off, which meant that their attack did not even need to be in a hurry.

When the generals in these cities can't get in touch with the rear, they will inevitably be suspicious, these people don't look like they in their hands, and they have a way to deliver news that can be reached in an instant from hundreds of miles away.

That's right, for the first time, the 20,000 cavalry of Chebi Holi carried a portable radio transmitter, which could be generated by hand-cranked generators or foot-operated generators.

In fact, these wireless transmitters can be used for up to a month on a single charge, as long as they are not turned on for a long time and only keep communicating at a fixed time.

"Order all troops, suspend the merits, and give our enemies a little deterrent first." Li Shiji thought about it and issued a brand new order.

According to Li Shiji's previous preparations, when they arrived at the first line of defense in Liaodong City, they would immediately attack, first feint Huaiyuan Town, and then send a main force to bypass Xuanfu City (Shenyang) from the north, and then break through Gaimu City (Fushun) first.

But now he has a new idea.

Liaodong City, as the largest military town in Liaodong, is now far larger than Xuanwu City, which became the capital of Liaoning Province in later generations.

This is especially true of the city walls, as well as the size of the army assembled.

But at this moment, the Liaodong City Guard, Sun Daiyin, looked at the Tang army under the city wall with an earthy face, and the Tang army was lined up less than two hundred meters away, and Liaodong City was close to the two-thousand-meter-long city wall, and the Tang army was at least more than three thousand meters long!

The point is that all the Tang troops were dressed in brand new steel armor, with Tang swords at their waists, spears in their hands, and bows and arrows on their backs. The first two columns hold large shields.

The uniform army was horizontal and vertical, the armor on their bodies glittered in the sun, and when they looked up, there was a sense of boundlessness at the end of the line of sight.

The dense Tang army, all of which were heavily armoured, lined up neatly under the city of Liaodong.

As a general, it is basic to estimate the number of enemies through enemy formations, camp tents, etc., but the previous Tang army, I am afraid that there are tens of thousands!

At least 50,000 or more heavily armed elites!

Sun Daiyin's scalp was numb, he didn't know how to fight this battle, the point was that in the enemy's formation, a specific huge stone-throwing cart, and a large ballista were also lined up in a neat line!

That's about it, but it's all steel armor, and there are more of them.