Cold Wind City, Drifting Snow City, and Black River City are the three most important cities in the northeast of the Xia Empire.

Needless to say, the two valleys in the north of the Tesla Mountains are under the overlook of Drifting Snow City, so it can be said that with Drifting Snow City, the Xia Empire has the capital to attack the Oaks Empire in this area. And without Drifting Snow City, the Oaks Empire can attack other places from the northern route, and even send troops around the central theater to sneak attack, so as to gain a greater advantage.

And at this moment, the central theater is dominated by the Xia Empire, so the northern theater of the Oaks Empire has no intention of attacking south, after all, rushing from the north to the middle, without the coordination and cooperation of other armies of the Oaks Empire, it is not much different from sending to death.

In peacetime, whether it is goods from the Oaks Empire or the specialties of the endless forests in the north, they are transported to various places in the Xiya Empire through the convenient water transportation industry of Heihe City, and even some kingdoms and principalities in the south and those small countries in the northwest have benefited from this. In times of war, just like the current Heihe City, it is the largest material base in the north, and all the materials needed on the front line basically have to be transferred through Heihe City. If Black River City can be captured, then the entire northern part of the Xia Empire will be equivalent to having a broken leg......

Whether it is strategic or financial, the importance of Black River City is self-evident. But Qin Long valued Cold Wind City more.

From the map, Drifting Snow and Cold Wind City become a diagonal line, and the distance between the two cities is relatively close, so it is easy to support each other. If the city of Cold Wind can be occupied, then the army of the Oaks Empire is equivalent to having a solid forward base in the territory of Chia, the two cities are horns of each other, watching each other, and the Sia Empire wants to capture it, unless it is willing to fill it with human heads......

Cold Wind City is located further north, close to the Endless Forest, so there is a very developed adventurer industry here, and a large number of Warcraft furs and crystal nucleus products are exported from here every year...... If Qin Long captured Cold Wind City, it would not only strengthen the defense of the Oaks army, but also cut off the crystal nucleus path of Cold Wind City...... You must know that the war is very costly for the magic crystal and the magic core, and the Drifting Snow City occupied by Qin Long could not be opened because of the insufficient number of magic crystals when facing Hegel......

You must know that Qin Long has a large number of magic crystals in his hands, but the city defense magic array still needs several special magic cores to open...... That's why they fought so badly in the defense of the city.

Although the Demon Crystal Demon Core is a necessary strategic material for all Imperial Kingdoms, if it can cut off the supply of Cold Wind City, it will still have some impact on the Northern War Zone. And Qin Long hopes to take advantage of this bit by bit to accumulate an overall strategic advantage.

However, this is also due to the fact that neither of the main forces of the two empires has set their sights on the north. After all, for the two great empires, the Northern Theater of Operations is only an insignificant remote area, and its actual strategic significance is not great. But when the two sides were deadlocked, the Northern Theater expanded rapidly under the leadership of Qin Long......

Needless to say, all kinds of small towns, small strongholds, small fortresses and castles and the like, even if Qin Long now let go of the siege of Cold Wind City, those frightened Xia soldiers would not dare to leave the protection of the city...... Even now, the poor Shia soldiers felt that the city was not enough to protect them......

Countless Oaks soldiers, carrying all kinds of strange things, are charging......

Thanks to this wonderful world, many tools that the earth could not even think of have been made in this way......

A tree called the Devil's Gum, which is amazingly elastic, is at this moment, these Devil's Gums Trees are being made into giant trebuchets, and the elasticity of the Gumwood Tree increases the range of these trebuchets to a perverted level...... At least the magicians and archers of the Shia Empire could only hide their faces from such a distance......

There is also the ladder used by Hegel during the siege of the city, which has been improved by Qin Long, which is not only waterproof, fireproof and impact-resistant, but also can be combined with dozens of ladders to form a huge slope...... When this weapon appeared, it made the Xiya Empire slow for a long time, and Qin Long almost took control of the city wall at a very small price.

There was also a super shield carried by dozens of soldiers, which was covered in some kind of magic glue and sand-mixed solids, and even a third-order mage would need several attacks to break through...... It's a pity that the Oaks mages and archers who hide behind the shields don't give their opponents much time......

Oakes's soldiers were frantically attacking, if it weren't for the fact that there were more than a dozen fourth-order magicians and priests in Cold Wind City, I am afraid that they would have been lost a long time ago, even so, Qin Long, who was in a weak position at the high-end combat power, also inflicted terrifying damage on the other party at a very small price......

"Commander, there is a hole in the enemy defense line in the east wall of Cold Wind, can you get more people......" A soldier hurriedly ran over and reported loudly.

"No, tell Sterling that you will come down after a while on the city wall......" Qin Long looked at the map intently, and returned without raising his head.

"But ......" The soldier was still a little hesitant, after all, he knew Qin Long's style, as long as he obeyed the order, everything else was fine.

"No, carry out your order immediately!" Yuna on the side snorted coldly and waved the bow and arrow in her hand!

The kind-hearted Lena was forcibly stuffed by Qin Long into the siege group in front of her, and followed the action of Oakes' mage group...... Qin Long said that this was to exercise Lina's sense of war...... But no matter how Yuna thought about it, she felt that Qin Long was creating an opportunity to tease her alone......

"Commander, the enemy forces on the western wall suddenly have a lot more support, and Lord Delis hopes that your lordship can send more soldiers and horses to support......

"Oh, tell Delis that don't stop the siege, but there's no need to fight each other to the death......" Qin Long smiled slightly, speaking of which, Delis has been much more honest recently, although she still looks like she is on top, but at least she can communicate normally...... That's why Qin Long appointed her to command a group of men and horses to be responsible for the attack in the west, at least Delisi can be regarded as having a certain military literacy.

Countless pieces of information and orders kept coming in and out of Qin Long's command room, and finally at noon, Cold Wind City couldn't bear it and could only open the magic array to defend the city...... This is a place backed by the Endless Forest, and the Demon Crystal Demon Core will naturally not be scarce...... However, Cold Wind City is also much larger than Drifting Snow City, so the consumption of this magic array is also quite terrifying.

The opening of the Defending City Magic Array means that unless Qin Long has the ability to forcibly break the magic array or gradually consume the defense of the magic array, but no matter which one it is, it is not something that can be done in a while......

The fourth-order magic array activated by Cold Wind City requires at least a mage of the sixth order or above to be able to break through. And slowly consumed...... The ghost knows how many magic crystal reserves there are in Cold Wind City, but it shouldn't be too little......

But Qin Long originally wanted to force the other party to open the magic array, because he had a more important plan to accelerate the implementation.

A large number of accompanying mages and archers were recalled, leaving only the samurai on the front line and a small number of mage archers to feint attacks from time to time, but when the mages of the Shia Empire returned fire, they quickly retreated to a safe distance......

This kind of harassment is constantly going on, although the outward attack in the magic array is not restricted, but it also needs to consume a certain amount of magic circle energy, and the Xiya Empire is facing a group of enemies without any discipline, if you hit me, I will run, if you don't fight, I will slowly approach, anyway, there are so many defensive equipment......

The trebuchets in the distance, which made the Xia soldiers sore in the distance, suddenly sped up the speed of their throwing, and countless gravel feces and all kinds of strange things were smashed towards Cold Wind City...... When it reached the sky above Cold Wind City, it was shattered by the power of the circle......

The Sia soldiers of Cold Wind City looked at the stones falling from the sky with a headache, or small animals, or stinky poops, oh, and flowers and plants......

Time slowly passed into the evening......

In the command room, Qin Long also slowly opened his eyes. He had just rested for a while when he was woken up by the soldiers who came to report, but the news that came made Qin Long very happy......

"Gather all the high-level professions, start eating dry food now, and start setting off after dark!" Qin Long squinted his eyes at Cold Wind City and smiled evilly.