While paying close attention to the state affairs, Cao Liang did not always forget the five Xiongnu departments that had fled, and he sent a large number of scouts and spies, disguised as disguises, to Jiuyuan to spy on the movements of the Xiongnu.

Jiuyuan is the seat of Xinxing County, and it is also the nest of the Xiongnu in the north, which is already close to the outside of the Saiwai, the land is vast and sparsely populated, and the number of Han people is relatively small, so Liu Teng easily controlled the entire Xinxing County after the uprising.

Then Liu Teng waved his army to the south, and besieged Jinyang with the other three divisions, but with the defeat of the east, the Xiongnu tribes fled from Jinzhong one after another, and chose to go north to the northern Xiongnu, and the five tribes are now gathered in Jiuyuan.

In the previous comparison of forces, the northern Xiongnu was a relatively weak one, and the strength was only above the southern Xiongnu, which was roughly equivalent to the central Xiongnu, compared with the left and right Xiongnu, it was indeed a lot different.

But now the other four Xiongnu tribes have lost their nests, and only the territory occupied by the Xiongnu in the north has not been damaged at all, which also makes Liu Teng seem to be above the other four tribes and become the leading power of the Xiongnu.

However, the increase in power does not mean that the strength can explode, although Liu Teng withdrew in time during the Battle of Dongguan, the entire northern Xiongnu army did not participate in the war, and most of it was preserved. But despite this, in terms of troops, it is difficult to say that the northern Xiongnu have become the first among all departments.

However, Liu Teng's status has been sharply improved, after all, the other four departments have empty soldiers and horses, but they even have to rely on and rely on the northern Xiongnu for logistics support.

This feeling of sending people under the fence does make Liu Meng, Liu Jiao and others feel deeply uncomfortable, but they are helpless, and now what the four Xiongnu are thinking about is to restore to the original territory of the four.

But the thoughts of Liu Meng and Liu Jiao and others are difficult to realize, and now Cao Liang is also the assassin of the state, taking over the military and political power of the state, Liu Meng and others who heard the news were very disappointed.

If you change the history of assassination, it may be said that Tian Yu is still in charge, so that the threat to the Huns is much smaller, and Cao Liang's murderous reputation has long been outside, hearing the news that he took office and the state assassination history, the hearts of the Xiongnu tribes suddenly cooled by half.

If they want to regain the four nests they lost from Cao Liang's hands, it is simply a test to ascend to the sky.

And it's not sure if Cao Liang will continue to attack north, the Huns have always been very nervous, and now their base is only Jiuyuan, if even Jiuyuan is lost, then where will the Huns go, everyone has no answer in their hearts.

Since the Southern Xiongnu moved south, the Northern Xiongnu fled far away, the desert outside the Saiwai has become the world of the Xianbei people, and the Xiongnu and Xianbei are enemies who do not share the sky, vowing not to stand together, and the Huns want to retreat to the grassland where the original ancestors once lived, and it has become impossible.

Under this unprecedented pressure, the five Xiongnu tribes appeared unprecedented unity, and they all seemed to understand that only close unity was the only way out against the Wei people, and if they continued to maintain the situation of fighting separately, they could only end up in ruin.

Liu Meng no longer insisted on being this Shan Yu, and Liu Bao took the initiative to take the defense of the southern city wall of Jiuyuan by relying on the relationship with Liu Teng's alliance, and became the first team to participate in the defense of Jiuyuan.

Soon, Liu Meng and Liu Jiao also led their troops into the city, and took on the defense of the east and west of the city respectively, actively preparing for war and beware of the sneak attack of the Wei army.

As for the southern Xiongnu, who only had a few hundred people, they were welcomed into the north gate by Liu Teng, which was the defense range of the northern Xiongnu, and the hundreds of people in the southern Xiongnu were obviously a drop in the bucket.

However, inviting the southern Xiongnu to join the city defense obviously has a deeper meaning, so far the five Xiongnu departments are officially unified, working together and unifying with the outside world.

However, after the Wei army was stationed in Jinyang, it had always been immovable, and it seemed that there was no idea of attacking, which made the Huns feel very confused, and they did not know what kind of medicine Cao Liang's gourd was selling.

Naturally, it was impossible to guess, but since the Wei army did not come, the tense nerves of the Huns naturally relaxed.

Autumn to winter, the city of Jiuyuan is also wrapped in a silver-white costume, the Huns can be regarded as a long sigh of relief, no matter what, the Wei army will not step on the snow, in this cold weather, fighting is to kill themselves.

The Huns became lax, but the Jinyang City side did not cancel the drill because of the heavy snowfall, and the fifth battalion of the Pingbei Army was still training hard according to the training plan formulated earlier.

Leave an extra drop of sweat in peacetime, and shed a drop of blood less in wartime, so Cao Liang attaches great importance to the training of the five battalions of the Pingbei Army.

After the merger of the Fifth Battalion of the Pingbei Army and the Bingzhou Army, Cao Liang ordered the Fifth Lieutenant to draw up a detailed drill plan, comprehensively implement the training content, and improve the combat effectiveness of the Pingbei Army in a down-to-earth manner.

After Cao Liang took over the Fifth School of the Northern Army, in the past half a year, he experienced two large-scale expansions, the first time he recruited troops in Hedong County, and expanded the establishment of the Fifth School of the Northern Army to 10,000, this time in Jinyang, merged with the Bingzhou Army, and the Fifth School of the Northern Army increased to 25,000 again.

And 25,000 people is already a large army, but the reorganization of the two armies and the integration of the two armies into one may also cause contradictions that will be difficult to reconcile.

In order to really improve the combat effectiveness and put the army into the offensive as soon as possible, Cao Liang is still very attentive, even if the official business on the side of the Assassin Mansion is busy, but he will be transferred every few days to come to the school to supervise the drills.

Under the strict management of the five lieutenants, the new Pingbei Army took on a new look, standing in this icy and snowy place, not a single soldier was afraid to retreat, all of them held their heads high, stood proudly, and accepted Cao Liang's review.

"Shizai, when will the Yue Cavalry Battalion be able to go on the expedition?" Cao Liang asked Deng Aidao.

"Anytime...... Either way! Deng Ai replied.

Cao Liang obviously waited for this kind of sentence, he turned back to Huan Fan and said: "With such a heavy snowfall, the Huns must be defenseless, and it is the right time to sneak attack Jiuyuan at this time, I don't know what Mr. wants?" ”

Huan Fan said noncommittally: "Taking advantage of the snow to enter, it is possible to be surprising and unprepared, but the news from Jiuyuan that the Huns have rebuilt Jiuyuan City in the past six months, and the five soldiers and horses each guard one door, and the defense is tight. ”

When Cao Liang heard this, he said, "According to Mr. Liang's opinion, what should we do?" ”