Liu Ziyu tightened his coat and strolled on the dock of Busan Port.

As the commander-in-chief of the sea soldiers and horses in the Jin offensive, and the current head of Haidong, he has no opinion on his position now, and the only worry in his mind is how to better complete this task - from the back road of the Jin people.

From the mixed river, that is, the mouth of the Heilongjiang River in later generations, sail in, seize the Nuer Gancheng there, and then the army traces south to the south, and you can kill all the way to the nest of the Wanyan family.

Whether it is the Huanglong Mansion that the historical Yue Wang Ye never forgets, or the Five Kingdoms City where Zhao Ji's father and son were imprisoned, they are all along the Tongtong River.

When the main force of the Song army launched a fierce attack to the northeast by land, even if the Jin people were defeated, they would definitely gather the main force to meet the battle. This gave Liu Ziyu a great opportunity to take advantage of the situation.

The port of departure of the Song army by waterway was set at Busan.

It is far more suitable than Ezo, because it is backed by Goryeo, and many of the military supplies needed can be purchased from Goryeo.

At this time, the port of Busan was bitterly cold and snowy. The silver-white color has completely covered the entire port. But even in this climate, in the Busan port area on the east bank of the Nakdong River, a large group of Goryeo people are still being driven to build wharves, piers, warehouses, and roads. Due to the friendship between Goryeo and Zhao and Song, the port of Busan, as one of the main trading ports of Goryeo, was not only the military and civilians of the Song Dynasty, but also many merchants from the two countries.

Because everyone is optimistic about the future of Busan Port, they have come to buy land, settle down, and do business. Moreover, Zhao Song did not have any restrictions on the trade of Busan Port at all, and I don't know how many Goryeo officials and families were mixed with it.

But this also promotes the development of the Port of Busan, doesn't it?

With the advent of winter, the Song army, which had already established itself in Ezo, went to Busan Port for the winter, although Busan Port is the base camp, but the role of Ezo is also very prominent. It is much closer than Busan to the mouth of the Bangdong River.

As early as the beginning of construction in Busan, Jeju, Sado and other places, the Song army also landed in Ezo. Instead of relying on force, but only cloth, porcelain, silk, and a small amount of iron, he was able to obtain three leased lands from the Ezo people, roughly the three later Hakodate, Sapporo, and Yanai.

Wharves and warehouses were built there to serve as a logistics transfer station for soldiers and horses by sea after the war began.

Otherwise, from Pusan to the mouth of the Tongtong River, the distance in a straight line alone will be four or five thousand miles.

Including Sado Island, these are the transit points for this long sea transportation line.

A Song army gathered in Busan, and the soldiers and horses there quickly increased from the original 1,000 soldiers to 5,000. But the eyes of these 5,000 people are really only staring at the north, and no one below Liu Ziyu plans to do anything to Goryeo.

But the Goryeo people don't think so, especially the Goryeo king Wang Kai, who has just killed his grandfather for less than two years. The local state capital, as well as the entire Gwanggyeong Province, as well as the surrounding Jeolla Province and Yanggwang-do officials and families, all have their eyes on Busan.

They will not completely believe in Zhao Song's promise, seeing that a Song army is gathering in Busan, on the one hand, they will organize the army as if facing a great enemy, and on the other hand, they will spy on the inside news through merchants. The official also asked someone to send a lot of pigs and sheep to the Song army to comfort him to listen to the style.

Liu Ziyu didn't care whether the Goryeo people believed it or not, he felt that even if the Goryeo people had a hundred guts, it would be impossible to take the initiative to start a war against Zhao Song at this time. In that case, what can the Korean people do if they are nervous about themselves?

But Liu Ziyu's actions made the Koreans even more frightened. More than one suspected that Song Jun had a plan, otherwise how could he be so calm?

As a result, the number of soldiers and horses in Gwanggyeong-do, Yang-gwang-do, and Jeolla-do was constantly increased. In the past two months, Wang Kai has requisitioned 40,000 or 50,000 soldiers to the south.

Liu Ziyu didn't take it to heart at all.

Now, his mind is only thinking about the war after the beginning of spring, and the question of the direction of the war.

Crossing four or five thousand miles by sea, and then having to walk thousands of miles of rivers and waterways, so that you can penetrate deep into the core of the enemy. This is fundamentally unique in the history of wars of all dynasties.

Liu Ziyu is now setting a historical precedent and completing an unprecedented thing, can he not rack his brains and work hard?

Pity. Even Goryeo has a very limited understanding of the Jurchen geography, and even less about the geography and topography of the area north of the Tongtong River.

Goryeo is still relatively close to the Jurchens. Even in the era when the Khitans were the bosses, the Changbai Mountains in the north of Goryeo, the Yalu River in the west (as a reminder, the vast area on the east bank of the Yalu River at this time did not belong to Bangbang), and the Husu Pavilion in the Liaodong Peninsula in the southwest were all Jurchens.

The Jurchens are also divided into mature Jurchens and raw Jurchens, such as the Yalu River Department and the Hosu Pavilion Department, which are all Jurchens who have been semi-assimilated by the Khitan. It is very different from the Wanyan Jurchen in the Tongjiang River basin and the Changbai Mountains in the Tumen River basin.

Even if the Goryeo people have certain contacts with the Jurchens in the Changbai Mountains, they don't know anything about the geography of the Tongjiang River.

Therefore, all Liu Ziyu can do is to lay a solid foundation for his own march.

Whether it is military training or material supplies, including the people and strong masters, he must do his best. Because only by maintaining the best posture can we meet the challenges of the 'unknown'?

Therefore, not to mention that Wang Kai mobilized forty or fifty thousand soldiers and horses to Guangqing Dao and others, he just transferred all the soldiers at hand, and Liu Ziyu would not take a second look.

"Haha, haha-"

Liu Ziyu stopped, looking at the soldiers who had been trained on the school field not far away, his eyes were full of joy.

There are only a few 5,000 Song troops in Busan, but the spirit of these Song troops is really very different from the Song army that Liu Ziyu led before. It can even be said unceremoniously that except for the fact that the military uniforms are the same, the current Song Army is no different from the Song Army of the past.

As a general who has come over on the battlefield, who wants to lead a group of soldiers? Liu Ziyu couldn't close his mouth happily when he looked at the soldiers under his command now, even if these soldiers had been under his command for a while.

After all, it will not be long before the two sides of Song and Jin will fight. Whether he Liu Ziyu can make contributions depends on whether these soldiers are effective.

"The chief minister, the Korean people have sent a message that the pigs and sheep have left the city and can be sent to Busan in the afternoon at the latest." A clerk rushed to tell Liu Ziyu.

"Tsk, it's long overdue. It's all Goryeo's self-righteous fools. "The logistics of marching and fighting are the first, and Liu Ziyu's army is an army with extremely important tasks, and its food treatment is better than that of soldiers and horses on land.

"A flock of pickled birds, come back and settle accounts with them." He was the governor of Haidong, and Goryeo, Japan, and Ezo were all under his jurisdiction.