Leng Feng was silent, although the battleship in front of him was very fierce, it was only lined with iron sheets in some key places. However, when it is replaced with the power of a steam engine, it can be turned into an iron plate material.

Wrap a layer of iron sheet or directly use an iron plate, which is more fierce, needless to say!

Sailing back, Leng Feng ordered the shipyard not to rest and continue to renovate the battleship.

It wasn't until the first month that the entire fleet, a total of fifteen ships, was completely remodeled. It's just that the sea has frozen, and although the last few ships have been built, they can't be launched.

This was a perfect victory for the craftsmen such as the Gongyi family, and on the day of completion, Leng Feng ordered a reward of five gold coins to each of them.

"Everything is ready, just wait for the sea to melt in the spring!"

Zhang Liang took a deep breath, he had never been as confident in himself as he was today. With the help of fifteen of the world's best ships, he didn't feel any terrible enemies in this world.

During this time, he had been discussing the landing route with Leng Feng, and he also led the soldiers to simulate several rapid marches with the Dragon Tooth Army.

Cangyan City is terrifying, but Zhang Liang believes that his soldiers can gnaw this city.

"The work of secrecy must be sitting, Dengzhou and Goryeo are only separated by a sea, and we only have one chance to attack, and we can't fail because of leaking news. Only if we occupy Cangyan City, can the Tang side completely let go of their hands and feet to attack Yuangai Suwen, if we fail, this side will have to reformulate the strategy, which will delay a lot of things! ”

Zhang Liang nodded, although last year's New Year's soldiers were all locked up in the barracks, but the soldiers did not complain.

O Goryeo! What a great opportunity to take credit!

After a routine tour of the barracks, Leng Feng returned to the tent to check the reply letter from Chang'an.

Li Shimin did not issue a holy decree, but wrote a private letter, which was full of fantasies about his return to the battlefield to kill the enemy, and the whole letter seemed to be inconsistent with the preamble. Knowing this guy's mind, a throne, it has been eleven years since he was kept in the palace. Now that he finally got the opportunity to drive the expedition in person, it is estimated that his Heavenly Sword will be sharpened off by him in two layers!

Du Ruhui's reply was an official document, introducing in detail the upcoming deployment of the Tang Dynasty troops in ciphertext, and also gave Leng Feng a suggested time for an official attack on Cangyan City. Li Shimin arranged him as the right attendant of the military department, but in fact, he was simply the "deputy military department secretary".

Originally, Li Shimin felt that Leng Feng could not concentrate on being the secretary of the military department, and planned to let Du Ruhui and Leng Feng take turns to do it, but he didn't expect that Leng Feng was actually very suitable for the work of the secretary of the military department, except for leaving on business, he was not impatient at all.

Li Tai also wrote a reply in pinyin. The rubber tightened beyond his expectations, and after he had prepared the frame, the steam engine pushed a small grinding disc into a long motion just for the first experiment.

Next, he had to study how to make the steam engine more efficient.

In the reply letter of the old patriarch Li, they refuted Leng Feng's order for the first time, and they did not understand why the Leng family came forward to contract the construction of roads between the major cities of the Tang Dynasty, or to pave the road as flat as possible and straighten as much as possible through the mountains and mountains.

What they couldn't understand the most was why they had to use small pieces of sand and gravel as the roadbed, lay good timber on the bottom, and install two rails made of steel.

Such a project, with the Leng family's wealth, will be difficult, and the family will not be able to support it, so it can only rely on the annual profit to fill this bottomless pit little by little.

Leng Feng couldn't tell them directly that after the steam engine was developed, the train would replace the Red Feather Express as the fastest mode of transportation on land. Datang's business is thriving, and grasping the key of transportation, the Leng family has not had to worry about eating and drinking for at least a few hundred years.

After writing a letter and forcefully demanding that they do what they said, Leng Feng opened Leng Jing's reply.

He left the letter at the end, just to take a good look at how the kid was doing.

Leng Jing is very smart, he has been learning to write since he was four years old, and now he can write letters by hand, Leng Feng is not surprised.

When I opened the letter, the letter was written in vernacular, but the handwriting was pretty good.

In the letter, he expressed that he and his mother and sister missed their father, and hoped that his father would return home soon.

Leng Feng put away the letter and picked up the pen to write a reply to Leng Jing.

"Silly boy, your father and I have to do my duty, between the country and the family, generally speaking, the country is more important, don't worry, my father should be able to go back before the Chinese New Year this year."

There is no huge gap between father and son in this era between him and Leng Jing, and he has always put his son on a similar role as himself.

This time, Datang aimed at Goryeo, with the mentality of ambition to win, judging from the sudden start of working overnight in the Thunder Division, Li Shimin wanted to dig out all the foundation and defeat the enemy at one time.

With the help of gunpowder weapons, it is impossible for the Tang Dynasty to fail against Goryeo, and it will only take about a year to defeat the main forces of Goryeo, and then the finishing work after that will not matter to Leng Feng.

After writing the reply, Leng Feng left the tent and went for a walk in the snow.

Just wait for the beginning of spring!

The sea froze and went as fast as it went, when the fishermen in the distance began to shout "Open the sea!" "In just a few days, most of the ice floes on the sea surface disappeared, and the remaining bits and pieces could not affect the advance of the fleet.

It's time to go!

With Leng Feng's order, more than 6,000 soldiers began to board the ship and methodically carry materials to check the hull.

Gunpowder weapons with six times the base number can only be assembled if they are transported by ship.

After the inspection, fifteen hideous warships sailed towards Goryeo by the south wind at sea.

It wasn't until the battleship disappeared from sight that Zhou Jiao lifted the ban on fishermen going to sea. I wonder if the wreckage of the hull of the Goryeo Navy will float to Dengzhou?

The soldiers of the Dragon Tooth Army are all from the Central Plains, and many of them are seasick when they get on the boat, and even Li Erniu, who has the best physical fitness, carefully avoids the spikes on the side of the ship and vomits into the sea.

Shame on you! Leng Feng didn't expect this group of guys to get seasick anyway.

The soldiers of the East China Sea Army couldn't help but laugh good-natured when they saw Li Erniu and others seasick.

What's wrong with the combat power, it's not like two of them are on the ship!

For the Dragon Tooth Army, the East China Sea Army is admired, and in the rush training, even the most rookie Dragon Tooth Army soldiers can throw them for several miles.

You know, the weight of the Dragon's Tooth Army is twice as heavy as theirs!

In the Dragon Tooth Army, only Wan Zhu and Huang Zerui were not affected by the waves at all, and even dared to tie a rope around their waists and jump into the sea to catch sea fish.

It is the tradition of the Dragon's Tooth Army to try to relax yourself before the war.

Until the horizon was seen in the distance, this relaxed atmosphere of the Dragon Tooth Army disappeared in an instant. Li Erniu, who was still lying on the side of the boat just now and vomiting bitter water, immediately stood straight, if it weren't for his pale face, no one would have believed that this guy was still seasick a moment ago.

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