Just when Zhou Qiang's army arrived at Liucheng and began to prepare to attack Wuhuan King City, Huangfu Chaobo and Guo Jia in Longhua city also began to prepare for the arrangements for the follow-up war. After more than ten days of continuous transportation, ten thousand soldiers have entered the city of Longhua. Most of the Baima Yicong and more than 10000 guards under Zhao Yun's command have entered the horse training base in Longhua. In the next few days, when all the cavalry are in place, Zhao Yun will lead all the cavalry along Hebei, from hutougou pass to the north, out of the grassland, and around to the rear of Suli army.

The Chihou who went north had confirmed the barracks of the Suli army. As Guo Jia had expected, their tens of thousands of rear camp herdsmen, under the protection of less than 5000 troops, were distributed in the tens of miles long valley of Ethan town and siyonghe Town, and hundreds of thousands of cattle were scattered all over the mountain.

Maybe they thought that the Han Army had been surrounded by their army, so both the Xianbei cavalry and the herdsmen had no heart to guard against. So the Tang army quickly found out the general situation in the rear camp.

As far as Huang Xu is concerned, it is easier to defend Xianbei people after Longhua has added 10000 Qingzhou reinforcements. Huang Xu and Tian Yu, who were fledgling at the beginning, were able to defend the attack of hundreds of thousands of Xianbei troops. Now Huang Xu has been a war general for a long time, not to mention. Of course, there were some reasons why they were able to hold on easily at that time. On the one hand, the Xianbei people despised the enemy too much, and on the other hand, they had internal discord. But now it's sully who leads the army himself, and that's not the case.

During this period of time, although Suli was fully arranging the Xianbei army to attack tangtougou pass, he still failed to attack the city. Compared with the war in tangtougou Town, Xianbei people once again saw the strength of Han City and the benefit of soldiers. It took Xianbei people two days just to fill the trench in front of tangtougou. After thousands of people were killed and injured, they filled the trench which was tens of feet wide and tens of feet deep in front of tangtougou.

They thought that the next battle would be simpler, but they found that the siege equipment made by their own army could not last until noon, and they were destroyed by the closed equipment of the Han people. In the afternoon of the war, we relied on the simple siege ladder to attack the wall as high as three feet.

The war in tangtougouguan has been going on for more than half a month.

A few days ago, Suli received the battle report from Lulong. He learned that Micah and que Ji had already attacked Chifeng City, but they were helpless in the inner city. At that time, Suli was besieged by a large army, and then encircled the rest of Lulong County. Several generals proposed to go south to attack other cities, but sully refused. In fact, as early as the siege of tangtougou Town, Suli had sent people to continue to go south to explore the situation in the south of Longhua. He had already found that there was a city in the south, but the city was bigger and the city wall was higher. Suli knew that it was not an easy city to attack, so he never thought of dividing his troops to go south.

In fact, Suli's idea is right. Instead of going south, it's better to concentrate on attacking one place, but he chose the wrong place from the beginning and Longhua, which is the most difficult place to attack. If he had left ten thousand cavalry to guard tangtougou pass after he captured tangtougou Town, and then concentrated his forces to attack Chengde, it might have been possible to capture Chengde. But now it has been nearly two months since the war started. At this time, the reinforcements of the Tang army have arrived in Yanbei, so they are looking for death.

Now the bow has to be sent on the string. Although Suli didn't find any reinforcements for the Tang army, he knew that there must be reinforcements for the Tang army. So the Xianbei cavalry searched for the reinforcements in the south of Longhua every day, hoping to find them. However, to his disappointment, Chihou couldn't find any reinforcements.

The battle in tangtougouguan continues. Zhao Yun leads nearly 30000 cavalry to go northward along the yimatou River, out of hutougou pass, continue to walk northward for more than 100 Li to reach the grassland, then turn to the East for dozens of Li, and then go southward from the road where the Yixun river is located, to the north of Yixun Town, to the back road of dousuli.

Outside hutougou pass, thirty thousand Tang army marched in the winding valley, but they were still able to march along the way. Only when they were close to the grassland, there was a ten mile long valley which was difficult to walk. It was because of this difficult valley that the yimatuliu Valley and hutougou pass were not found by Xianbei people.

From Longhua, the distance from hutougou pass to the grassland is less than 200 Li, but the 30000 troops arrived on the grassland five days later. Later, Zhao Yun ordered the army to rest on the grassland for a day, while sending a large number of scouts to investigate the situation of the Xianbei army around.

Just a while ago, Chihou discovered that the situation was not so good. At this time, there were not many Xianbei people on the grassland. Only a few small tribes followed the army, hoping to get some cheap. As a result, cheap didn't find it. Instead, he was met by Zhao Yun's army and killed them directly, giving their cattle and sheep to the 30000 army to supplement their food.

One day later, after the army had finished its rest, the Marquis Chiu had also come back to inquire about the news. Suli's rear battalion had no abnormality and did not find that they had been targeted.

After eating in the morning, the army began to set out to the East. Fifty miles to the east from here is Yanbei Road, which connects the grassland and Youzhou. This is the time when Huangfu Chaobo and Guo Jia discussed business with each other. He named the Valley Road from grassland to Yixun River as Yanbei Road, while the road from Chifeng to Lulong fortress was Lulong road.Go south along Yanbei Road, pass through Yixun town and siyonghe Town, then reach Longhua, then go south to Chengde, and then turn East-West to Xiabancheng. Lulong Road, on the other hand, is from Chifeng, all the way from Louzidian Town, dianzicheng town and Xiaosigou town to Pingquan city. After the two roads converge in Pingquan, they go all the way south to Kuancheng, and then to Lulong fortress. These two roads are the main roads for the foreign people to go South and the Han Army to go north in the Central Plains over the years.

In fact, there is another way, that is, from Chengde to the southwest of youbeiping, to junmi, and then from the Great Wall to youbeiping. This road is the one that Huangfu Chaobo used to walk a lot at first, but it is relatively more difficult to walk. Therefore, most of the time, people prefer to go to Lulong instead of junmi.