With the pacification of the Owls, the Eaglehoof Empire is a thing of the past.

After settling the surrendered orc units, Ning Yuan immediately launched an eastern crusade against the Ice City Alliance.

The main force of this crusade is all the regular legions of the Condor Empire, and the task of the steppe cavalry remains the same, and they need to continue to put pressure on those cities that refuse to surrender.

After experiencing a storm of public opinion, the Ice City Alliance lost a large number of player legions, and now they are forced to retreat to the vicinity of Daqing Mountain, holding on to some cities that are easy to defend and difficult to attack.

When they learned that Ning Yuanqin led a large army to launch an eastward expedition to completely destroy them, they further retracted their defensive line and retreated to an area between Daqingshan, Zhang Guangcailing, and Xiaoxing'an Ridge.

This area is a plain terrain, located between the four mountains, and the four cities of Mulan, Shangzhi, Tangyuan, and Qitaihe firmly guard the passage connecting this area with the outside world, so the players of the Ice City Alliance call this area surrounded by four mountain ranges the Four Mountains Plain.

Mulan City is located between the Daqingshan Mountains and the Xiaoxing'an Mountains, and it firmly guards the entrance and exit from the Sishan Plain to the Songnen Plain.

The two cities of Shangzhi and Yanshou are located between Daqingshan and Zhangguangcailing, and if you want to enter the Sishan Plain from this direction, you must pass through these two cities.

Yubara and the Qitai River were the gateways between the Ice City Alliance and the Altai Empire, and these two cities blocked the Westward Movement of the Tiger Empire.

Because Shang Zhi and Yan Shou formed a double portal one after the other, and the Condor Army wanted to enter the Four Mountains Plain, they had to break through all these two cities, so Ning Yuan finally chose Mulan City as the main target.

After sending a legion to block the enemy forces in Shangzhi City, Ning Yuan led the main force of the Condor Army to the city of Mulan.

Mulan City is located on the north bank of the Songhua River, and the Ice City Alliance leads the Songhua River to surround the city to form a natural moat.

Looking at Mulan City, which was easy to defend and difficult to attack, Ning Yuan's expression was extremely serious.

Since the Four Mountains Plain is also rich in products, the Ice City Alliance, which occupies the Four Mountains Plains, still has the ability to be self-sufficient.

To deal with them, the siege has no effect, and only by breaking through the gateway of Mulan City can the Ice City Alliance be completely destroyed.

Mulan City faces mountains to the north and rivers to the south, and only the west can attack head-on.

After the engineering corps assembled the trebuchet, Ning Yuan let the trebuchet start throwing sandbags into the moat.

After seeing the Condor using trebuchets to fill the moat, the players of Mulan City immediately launched a counterattack, using trebuchets and bed crossbows on the walls to attack the Condor Army's trebuchet positions.

Seeing that the trebuchets were destroyed one after another, Ning Yuan's face never changed, he kept asking people to push out new trebuchets, and then continued to throw sandbags into the moat.

On the first day of the battle, the Ice City coalition destroyed a total of more than 30 trebuchets of the Condor Army, which can be described as a remarkable result.

Just as the players were about to continue playing this long-range game with the Condor Army the next day, a werewolf army under the Condor Army carried sandbags and quietly approached the moat under the cover of night.

When the defenders on the walls spotted them, they could no longer stop them from approaching the moat, and the werewolf warriors, under the cover of the shield bearers, threw their sandbags into the moat.

After discovering that the enemy wanted to carry out a night attack, the defenders of Mulan City immediately rained arrows down the city, but in the face of the shield array of the Condor Army, the rain of arrows did not achieve much effect.

As a result, players can only watch as the werewolves fill in the moat.

In fact, Ning Yuan could have chosen to fill the moat during the day, but considering the advantage of the werewolf warriors at night and the weakness of the enemy at night, he deliberately set this time at night.

There are two benefits to doing so.

One is to allow the werewolf warriors to pass through the range of the enemy trebuchet safely under the cover of night.

Second, they can harass the enemy and keep them from getting a good rest.

Just when the players of the Ice City Alliance thought that Ning Yuan would start attacking the city immediately after filling in the moat, there was suddenly no movement on the side of the Condor Army.

For three days, the Condor Army did not make any movement, not only did they not attack the city, but they did not even carry out trebuchet shooting, they stayed quietly in the barracks, as if they were not here to attack the city at all.

In the face of the Condor Army's non-routine cards, the players in Mulan City immediately became twelve points cautious, they were worried that the Condor Army would suddenly play something moth.

So, what kind of medicine is in Ning Yuan's gourd?

Answer: Nothing, he's just playing tricks.

Ning Yuan knew that the players were not only scheming, but also very suspicious, so he simply gave the soldiers a three-day vacation to let them have a good rest, and by the way, it also cost the players in Mulan City a lot of brain cells.

For Mulan City, Ning Yuan had already prepared an attack plan.

A fortified city like Mulan City, except for a frontal breakthrough, there was no shortcut at all, so Ning Yuan was ready to fight a meat grinding battle with the enemy.

From the sixth day, Ning Yuan and the players of Mulan City officially started a long-range catapult battle.

Although Mulan City was condescending, and the trebuchets of the Condor Army occupied an obvious weakness, Ning Yuan didn't care about the loss of his trebuchets at all, as if these trebuchets were all for nothing.

In this way, the enemy and us bombarded each other for three days and three nights.

On the tenth day, the stone bullets stored in Mulan City began to run out, and when the players opened the East City Gate and began to transport stone bullets from the quarry to Mulan City, the Condor Army, which had been holding still, suddenly began to press on it in a big way.

It turned out that Ning Yuan had been waiting for this opportunity, and the reason why he carried out long-range bombardment with the enemy at any cost was to consume the stone bullets stored in the city.

For this reason, he specially sent some scouts to hide on the mountains on both sides, observing every move in Mulan City day and night.

Ning Yuan cared so much about the trebuchets on the city wall, not because he was worried that the army would be hit by the trebuchets, but because he was worried that the siege equipment of the Condor Army would be destroyed by the trebuchets, so he had to take the initiative to send a large number of trebuchets to the other party.

In addition, after so many days of confrontation, the craftsmen of the Condor Army have figured out the launch trajectory of the trebuchets on the city wall.

Therefore, when the rain of stone bullets in Mulan City began to become sparse, the Condor Army's arrow towers and siege towers passed through the area covered by the enemy trebuchet very smoothly along the set trajectory.

Seeing that the Condor Army suddenly began to attack the city, the defenders in the city could not care about continuing to transport stone bullets, in order to prevent the Condor Army from stealing the city, they closed the east gate of the city as soon as possible and locked the convoy sent out of the city.

Because the Condor Army did not attack the city for many days, the defenders in the city were more or less lax, and just when they thought that this time it was likely to be a false shot with loud thunder and small raindrops, they didn't know that Ning Yuan and them were really moving.

Ning Yuan wasn't going to play any tentative siege, he used all his strength as soon as he came up.

As the pontoon bridges of siege towers were erected on the walls, groups of Condor warriors armed with shields and scimitars roared towards the walls.

This siege battle entered the white-hot stage from the beginning, and there were constantly Condor soldiers being shot down from the pontoon bridge, and there were also defenders being killed by Condor soldiers, and all of a sudden, the entire city wall was in full swing.

At this time, the results of Ning Yuan's meticulous preservation of siege equipment were revealed, and those elven rangers standing on the siege arrow tower brought tremendous psychological pressure to the enemies on the city wall.

Faced with the dense array of enemies on the city walls, they simply missed a shot, and every arrow took away a fresh life.

Under the cover of the siege towers, a large number of Condor troops rushed to the head of the city along the pontoon bridge, and then fought with the defenders on the city wall.

Seeing more and more Condor troops rushing to the city, the eyes of the players in Mulan City immediately turned red, and they grabbed their weapons and rushed to the city, trying to drive the enemy down.

The Condor Army has two siege legions, one is the Terran legion and the other is the Ape Legion.

In order to paralyze the defenders at the head of the city, Ning Yuan initially invested in the Terran siege army.

When the Terran soldiers managed to reach the top of the city, he immediately sent the ape-man legion out.

As the ape-man warriors deftly ascended to the top of the city, the defenders on the city walls were suddenly taken by surprise.

Faced with the strong, nimble ape warriors, they were beaten back one after another.

Seeing that the city was about to be lost if it continued like this, the defenders of Mulan City immediately sent the ace legion in their hands and began to transfer troops to Xicheng District.

He finally saw now that the Condor Army had been playing with them for so many days, just to catch them off guard today.

Looking at the black and oppressive army under the city, he knew that the Condor Army was not a small fight this time, and they were preparing to break through the city today.

Just when the battle on the western city wall was getting more and more fierce, Ning Yuan suddenly raised a big banner printed with the owl totem.

After seeing the owl flag fluttering in the wind, an army of owls appeared in the west, south, and north directions of Mulan City, and after they rose into the air, they immediately pounced on Mulan City in the distance.

The legions of owls to the west flew directly from the top of the siege towers, first throwing a rain of javelins at the enemy-dense area, and then launching a dive attack.

The legions of owls to the south and north were divided into two, and some of the owl warriors rushed straight to the walls facing them, while the other went around the sides of the east gate and launched a fierce attack on the east wall.

Although the players of Mulan City had already defended against the Condor Army, they still failed to stop the Owl Warriors from approaching in the face of the onslaught of the Owl Warriors regardless of casualties.

Especially in the eastern city wall, the army of owls occupied the entire section of the city wall without much effort.

Because outside the eastern city wall was the hinterland of the Ice City Alliance itself, they had a much smaller army there than in other directions.

In addition, the defenders of Mulan City also urgently transferred a lot of soldiers from the east city wall, which made the defense force here even weaker, so it was effortlessly captured by the Owl Legion that bypassed.

As the Owl Legion broke into Mulan City from three sides, the city suddenly became a pot of porridge.

Some soldiers rushed to the city wall, trying to rush to the aid of the defenders on the wall.

Some of the soldiers stopped where they were, looking for cover as they shot at the owl warriors who pounced.

Some of the soldiers froze in place, they didn't expect the enemy to rush in so quickly, and at this moment, they didn't know what to do.

The loss of Mulan City so quickly was not that the defenders in the city were incompetent, but that the strength of the Condor Army was too strong, completely beyond their expectations.

In order to break through Mulan City, Ning Yuan included all the warriors of the Owl clan in the list of expeditions.

The army of more than 400,000 owls, not to mention the players in Mulan City, was caught off guard, even if they were well prepared, I am afraid it would be difficult to resist this air force with a terrifying number.

This is not a random army, but an army of the Owls, so whether they are prepared or not, it will be difficult to resist the siege of the Owl Legion, and the only difference may be how much damage they can inflict on the Owl Legion.

With the three-way flowering of the Owl Legion, soon the defenders of the western wall also collapsed.

Faced with the pursuit of the owl warriors, the defenders were scurrying around the city.

The aboriginal soldiers either surrendered or hid in nearby bunkers.

The players knew that surrender was useless, so some of them chose to fight to the death, and they frantically rushed to the Condor fighters until the last man fell.

There are also some players who lose the will to continue fighting after seeing that the general trend has passed, and in frustration, they directly press the suicide button.

When the Condor Army occupied the West City Gate and lowered the drawbridge, Mulan City was officially declared lost with the official entry of the army.

In the face of those heroic players, Ning Yuan gave them the greatest respect and personally sent them to the prison center.

The street fighting after the breach of the city lasted from the morning until the sky began to darken before it officially ended, and when the last stubborn defender was killed, Mulan City completely belonged to the Condor Army.

The Ice City Alliance deployed 300,000 aboriginal soldiers and 200,000 player legions in Mulan City, but they didn't expect to be broken by the Condor Army in only ten days.

If you don't take into account the long-range bombardment of the first nine days, in fact, they haven't been able to hold out even a day.

The 500,000 Ice City coalition troops were wiped out except for the transport team that was locked up outside the East City.

After attacking Mulan City, Ning Yuan didn't give the Ice City Alliance time to breathe.

That night, after resting for a few hours, the Owl Legion attacked again, and under the cover of night, they effortlessly captured Tonghe City and Fangzheng City, which had few defenders.

Before the Ice City Alliance could react, the Owl Legion raided the unsuspecting Yilan City and Huanan City on the third and fourth days.

At this point, the entire Four Mountains Plain basically fell into the hands of the Condor Army, and there were only four lonely cities left in the Ice City Alliance.