Li Xiang carefully analyzed the terrain of Zhenla and the Bi Kingdom, and finally chose to attack the Bi Kingdom.

The border area of Zhenla is high and far away, which is really not suitable for the Tang army to develop, so Li Xiang is ready to launch a war in the country of Pi, since the two countries have formed an alliance, then the army of Zhenla will also come to support the land of the country to kill the two armies, and then the rest is to harvest.

As long as the elite sent by Zhenla is the elite, then the remaining armies will not have much effect, although they can't kill their territory for the time being, but after killing their elite, the territory is not ready for us to take whenever we want.

There were not many advantages for the Tang army at night, and it was not so easy to deploy various weapons and equipment, so Li Xiang chose to attack during the day.

According to some of Li Xiang's previous ideas, the border areas should have built the Great Wall, and later after more wars, Li Xiang knew that this was somewhat unlikely, that is, the Central Plains Dynasty had that strength, so that the Great Wall could be built in the border area.

As for other small countries, they don't have this ability at all, and if they had this ability, it is estimated that they would have invaded the Central Plains Dynasty a long time ago.

Take the border areas of the country as an example, many places do not even have a border, that is, there are only some troops stationed on the mainland.

At this moment, Li Xiang and Changsun Chong had already left the border, and there was Yakou Pass in front of them.

Judging from the peaks on both sides, it looks like an adult's tooth, so this place is called Yakouguan, and it is also a dangerous place.

Originally, there were only more than 2,000 people here, but because of the recent military operations in the north, the court of the Bi Kingdom sent reinforcements, and the two combined must have at least 5,000 people stationed on both sides of the pass.

"Originally, the people south of the pass were stationed here, the military camps on the left and right sides were newly added recently, they are not a great threat to us, the biggest threat to us is about 500 people on the peaks on both sides, although their number is not large, but a large number of stones are built on the mountain, if we force the pass, the stones on both sides will fall down and we will lose the most."

Changsun Chong has already figured out this place, except for the falling rocks on the mountain, the army on the ground does not have much ability at all, at most it is two charges, we can destroy these people, and after passing through here, there is no pass until Wacheng...

"Then it's up to our artillery, try to get them to destroy the implementation on both sides in the shortest possible time, after all the stones fall, our passage will be difficult, but there is not much danger."

Li Xiang's method is very simple, wait until dawn and our artillery will attack first, and then blow up the stones placed on both sides, anyway, there are no of our people below, no matter where these stones fall have little to do with us, of course, we must investigate clearly, how many stones are on the mountain.

This point Changsun Chong's people have already touched, and the shelling will begin after dawn, and after the shelling is over, it will depend on the situation on the mountain, if there are other dangers, the big deal is to put on some more shells.

In addition, there are five hundred people under Huo Quzhi, and their army with 1,500 Tusi masters is also touching at this moment, and mountain combat is not a difficult thing for them.

Li Xiang also saw at this time that no matter how strong a small country's determination to resist is, and no matter how much preparation they make, the lack of comprehensive national strength has already made them lose half of the war, and you may have all kinds of strategies on the battlefield, but in the face of absolute strength, your strategies may not be useful.

Although the army of the Bi State in the border area had been notified to alert them for a while, in the first few days, there was nothing wrong, and these people began to slack off.

What's more, there were Datang businessmen in the past yesterday, if there was a war between the two countries, would those Datang businessmen be stupid?

The sun still rises as before, but except for the sun at the top of the mountain, there is a fog in the valley, and the sun shines in the valley at all except at noon, so it is very humid inside.

The army of the country of Pi is preparing to go out for exercises as usual, they have only recently started training, and they couldn't do exercises once a month before, after all, the food in the army has just filled their stomachs, who has the kung fu to waste their strength?

But now the war is about to start, and if you don't train your body well, you will be like cannon fodder on the battlefield, so there is no need for the commander above to shout vigorously, they are already walking towards the playground.

Changsun Chong has long seen their training methods, or the way they fought before, according to your current training methods, no matter how hard you work, and no matter how much energy you put in, I am afraid that in the end it will not be our Datang's opponent.

Moreover, these countries in the south are too weak, they don't even have armor on their bodies, and some people can't even get all the clothes on their bodies when they didn't become soldiers.

"Report to Your Highness, the artillery is ready, ready to fire at any time."

Through the way of the flag, the people in the distance began to report.

"Then don't wait, let's start the southern expedition of my Tang army."

Li Xiang found a comfortable place to sit, and on the peaks on both sides of him were the stones prepared by the Bi army, once the Tang army launched an attack on the people on the mountain, these stones would be pushed down, bringing heavy losses to my Tang army.

But now they have all been figured out by Changsun Chong, and our artillery has also been pulled to the best firing position, and who these stones will hit later, I'm afraid it's hard to say.

"Subordinates obey."

As soon as the herald received the order, he began waving the small red flag in his hand.

One by one, the orders were conveyed, and soon they reached the artillery positions, and now the artillery was already all-iron.

Although it is still a front-loading artillery, it is not small.

With the deafening sound coming, more than fifty Shenwu cannons had already fired.

Some soldiers in the Tang army saw the 5,000-pound Shenwu cannon for the first time, and when they saw the stones falling from the cliffs in the distance, these people couldn't believe their eyes.

Can you hit it from such a distance?

Several shells hit the cliff in the distance, and this was all to determine the location, and the real shelling was done after the shot......