A few days later, Li Po was on a high place and witnessed the first battle of the Sui army's northern expedition.

This was the first time he had seen a large-scale battle, and it also seemed to be a very important lesson that God had taught him in his life.

The experience and lessons learned in this battle benefited him immensely in the days that followed.

After the end of this war, he understood a very important truth.

Brave generals, fierce soldiers, or even strict military discipline, complete armament, proper strategy and tactics, etc., are all prerequisites for victory in the war, but ...... You must not hand over the back to the children of the gate valve without reservation......

This is the most important one he summed up in the battle of Liaoshui, and it can even be said that it belongs to his war philosophy.

In March of the eighth year of the Great Cause, Emperor Yang Guang of Sui led his army to the west bank of Liaoshui.

Immediately, Shangshu Yu Wenkai of the Ministry of Engineering was ordered to build three pontoon bridges to cross the Liaoshui.

Needless to say, the family background of this Ministry of Industry Shangshu Yu Wenkai, the surname Yuwen is naturally from the Kansai lord Yuwen clan, and it is a very important branch of it.

Because his father was Yu Wengui, one of the twelve great generals of the Western Wei Dynasty, his elder brother was no worse than his father, Yu Wenxin, the general of the Shangzhu State.

Therefore, there is no need to say more about the prominence of his family.

And Yu Wenkai is not known for his martial arts, his main business is in all kinds of projects.

He was the most important artisan leader during the Kaihuang period.

From the Northern Weekend Year, until the Great Cause, all kinds of projects, are inseparable from him, he built the new Chang'an, that is, the Daxing City of the year, built the Great Wall, Chi Road, the excavation of the Grand Canal, and the newly built Luoyang City, all of which he supervised the completion.

This is undoubtedly a great engineer of the Sui Dynasty, and craftsmen such as Lu Ban, in front of him, are all pediatrics.

But in the eighth year of the great cause, he planted a big heel on the construction of the Liaoshui pontoon bridge.

There is no way, it is his luck to be with an emperor like Yang Guang, who can let him show his talents, and always have no trouble with the lack of manpower, which is a very happy thing for engineers.

But the unfortunate thing is also that he followed such a more casual emperor.

The emperor said a word, and he, the secretary of the Ministry of Works, didn't know how much hair he had to lose and how many sleepless nights he had to experience.

Surrounded by a large army and in full view of everyone, they cut down timber and materials, explored the geography and water potential, and ordered the sergeants, who were not familiar with the construction of the project, to quickly build pontoon bridges while the enemy was eyeing the opposite bank.

So, Yu Wenkai, who was not very familiar with the war, finally fell into the pit.

The pontoon bridge was built very quickly, which is directly related to the huge manpower.

Of course, this also has a great deal to do with Yu Wenkai's profound knowledge.

During the great cause, a series of projects also made Emperor Yang Guang of the Sui Dynasty, there was no shortage of engineering everyone, and under the concerted efforts of everyone, the pontoon bridge began to be built very smoothly.

But don't forget, this is in the middle of a war, and if there is no Goguryeo army on the other side, the pontoon bridge may soon allow the army to pass through Liaoshui.

However, it was just a fantasy, and later people said that Yu Wenkai miscalculated, so that there was a shortage of pontoon bridges, which led to the defeat of the first battle of Liaoshui.

In fact, under the strict defense of the Goguryeo people, the pontoon bridge hastily built by the Sui army could not be within ten steps of the east bank.

The Goguryeo arrows rained down, and while building a pontoon bridge, the soldiers of the Sui army who were preparing to cross the river and attack were difficult to advance and retreat, and they were congested on the pontoon bridge, and they completely became targets.

From time to time, people were squeezed into the water, and they in armor were immediately drowned in the surging water, and on the bridge, if there was a gap, rows of people would fall in a rain of arrows.

Heavy building materials, it is simply impossible to reach the front.

There are more and more Sui soldiers who fell into Liaoshui, and on the pontoon bridge, there are even more corpses, blood flows on the pontoon, and falls into the water, but it can't dye Liaoshui a little color, and then it is washed away by Liaoshui without a trace.

This is not the first time that the Sui people have shed blood on the Liaoshui, but this is the first time that the Sui people have fought with the Goguryeo people during the Great Cause period.

The soldiers of the Sui army, with boiling blood and countless lives, made the best interpretation for their pride and contempt for the enemy.

At this time, the unfavorable war has long since made another person's reputation known.

His name is Mai Tiecane, born in the Jiangnan bandits, with excellent bravery, and now he is the official to the Kaifu, the general of the Right Tunwei, and one of the confidant generals of Emperor Yang Guang of Sui.

He is undoubtedly the most typical fierce general in the era of cold weapons.

When he led the troops on the bridge and could not retreat, in fact, it was far less sensational than later people said, and he was as generous and fierce as a martyr.

He just did what a commander should do.

Seeing that there were still dozens of steps on the riverbank, the pontoon bridge was crowded, and it was impossible to retreat, and the Sui soldiers on the pontoon bridge were suffering tragic casualties.

Mai Tie couldn't help shouting and shouting, jumped into the water, braved the rain of arrows, and swam across the east bank.

At this time, the courage of the soldiers of the Sui Army was also vividly expressed.

As the general Mai Tie cane jumped into the Liaoshui, the soldiers under the command of the Right Tun Weifu followed without hesitation, and jumped into the water like dumplings.

Most of them didn't make it to the East Coast.

Either he died under the arrows, or he drowned in the water.

But undoubtedly, this was the most heroic moment in the Battle of Liaoshui, and it also created the ugliest scene afterward.

Mai Tie Staff was lucky that Liao Shui did not wash him away, of course, this is also inseparable from his bravery, the heavy armor, when he wears it, as if it is light, also provides him with enough defense, and the arrows do not bring him any harm.

He set foot on the east bank, and with the soldiers who climbed up one after another, he plunged into the army of the Goguryeo people on the east bank.

It was too far away, Li Po, who was far away on the west bank, could only hear the faint shouts of killing, and what he could see most clearly was the rain of arrows rising from the opposite bank, and the Sui soldiers who kept falling on the pontoon bridge.

When Mai Tiecane and dozens of soldiers under his command stepped on the east coast, Li Po was thinking, it's over, today's battle should be over.

At this time, the tragic war could no longer touch him too much, and he just stared at the dense rain of arrows that kept falling on the pontoon bridge in a little horror.

Because he knew that if he was on the pontoon bridge now, then most likely, no miracle would happen, and his choice would not be any different from those who landed on the east bank, and he would plunge headlong into the water, avoiding the damn rain of arrows first.

At the end, as Li Po expected, those Sui soldiers who went ashore were quickly submerged in the strict Goguryeo military formation.