While the forces south of the Yellow River were busy, Gongsun Du, who was far away in the northeast, was in a dilemma and was in danger of being attacked on both sides.

Before Gongsun Du retreated to Xiangping, he always thought that his sailors in the north could run rampant between Liaodong and Donglai, and there were some small boats in Liaoxi at best.

However, what Gongsun Du couldn't imagine was that the Youzhou West Road Army attacking Liaodong was only a light cavalry of the 3,000-degree Liao Army led by Xu Huang, but the result was that all the 40,000 main forces in Liaodong were firmly attracted to the east of the Yiwulu Mountains for two whole years, but Liu He made full use of these two years to remove all kinds of threats to the north and west of Youzhou one by one, and secretly quietly set up a boat battalion that could sail on the sea, and finally took advantage of the opportunity of the Liaodong Naval Division to block the coast near Yushui, and came to a beautiful crossing.

After receiving an urgent report from the direction of Xiangping, Gongsun Du, who was still in Fuli at that time, immediately made the decision to lead his army to retreat to Xiangping, and took advantage of his close relationship with Murong Xianbei in the east to ask the Xianbei people to build a new defense line for him in the vast area west of the Great Liaoshui to the east of the Yiwulu Mountain, and then opened Xi'an Ping to the Goguryeo people, acquiescing in allowing them to enter the southern tip of the Liaodong Peninsula to attack the rear of the Duliao army.

If Liu He grabbed the lead in the battle of Liaodong, then Gongsun Du's backhand response was still very sharp, fortunately, Liu He did not dare to support the big at that time, not only took Guo Jia to personally go to the Lingzhi examination to coordinate and command, but also decisively increased troops in the direction of Yangle and the direction of Yu.

In order to ensure that the troops on the western front could be defended and attacked, Liu He first ordered Tian Yu to lead the light cavalry battalion of the Zhenbei Army and the recruited Wuhuan cavalry to Liaodong, and then sent thousands of Dragon and Tiger Guard infantry guarding him to Yangle, and also sent important subordinates such as Sun Li and Xu Miao to the western front. The strength and command of the Western Front were greatly enhanced.

In order to alleviate the pressure on the main force of Xian Yuyin on the Eastern Front caused by the Goguryeo, Liu He urgently mobilized 5,000 infantry from the Zhenwu Battalion of Jizhou to reinforce the Yushi. At that time, Gongsun Du had already shrunk his naval division to a 200-mile coastline near the mouth of the Great Liao River, otherwise the 5,000 infantry from Jizhou might not dare to cross the Bohai Sea to the city.

The result of Liu He's continuous increase of troops and generals on the eastern and western lines of Liao was that Xu Huang surrounded and annihilated more than 10,000 Murong Xianbei near Wuwu in the southeast of Fuli City twenty miles away in the southeast of Wuwu City, and then captured Wuwu City in the east of Yiwulu Mountain in one fell swoop, leaving the barrier of Yiwulu Mountain behind. The result of Liu He's increase in the eastern front of Liaodong was that Xian Yuyin no longer had any worries, and he could concentrate all the 17,000 infantry troops near Xinchang, so that Gongsun Du, who was cowering in Xiangping City, would never dare to go out of the city again.

Gongsun Du also knew that the East Road army led by Xian Yuyin personally posed the greatest threat to him, like a sharp sword hanging over his head, once cut down. It's the end of the head falling to the ground. He sent troops to attack the Duliao army stationed in Xinchang many times, and the biggest movement was the time when Xian Yuyin led his troops to Anshi to stop the Goguryeo. It's a pity that although there were less than 9,000 people left in the Duliao army left in Xinchang City, Gongsun Du sent more than 20,000 troops to sneak attack, but he was beaten by Li Ru, the military advisor of the Duliao army sitting in Xinchang City, with a blue nose and swollen face.

Who is Li Ru? Dong Zhuo, the former chief strategist who once commanded more than 200,000 Xiliang troops, and the current director of the Youzhou Supervision Office, the last identity is the military division of the Liao Army, what big scene has he not seen in his life? This time, in order to deal with Gongsun Du, a tiger entrenched in Liaodong, Liu He has invested a lot of money! The Liaodong and West Lines had many subordinates of Xu Huang, Tian Yu, Sun Li, and Xu Miao, and the Eastern Front directly sent Li Ru, a low-key fierce man, to Xian Yuyin. If it weren't for the fact that Tian Chou was now in charge of the intelligence mission in the entire north, maybe Liu He would have sent Tian Chou to Liaodong this time.

After Xian Yuyin led the army away, Li Ru seemed to have expected Gongsun Du to come back and sneak attack, so he ordered the soldiers of the Liao Army of 9,000 degrees who stayed behind to make all kinds of preparations for engagement. As a result, when Gongsun Du led the army to attack, he was severely beaten, and then hurriedly retreated to Xiangping with a full head bag. A long-planned sneak attack turned into a battle that the other party had prepared for a long time, how could Gongsun Du dare to fight all his remaining family resources outside Xinchang City?

At the beginning, when the Liao army captured Xinchang City and approached Xiangping less than a hundred miles. Gongsun Du was still in command on the Western Front, and if Xian Yuyin had led 14,000 infantry on the Eastern Front to raid Xiangping City, he might have 30% certainty of capturing Xiangping. But he didn't. Because Xian Yuyin and Li Ru both knew that the siege battle was the most difficult, even if the troops left in Xiangping City were only 10,000, and Gongsun Du was not in Xiangping City, the certainty of victory was still not large, and the price they needed to pay was too great, so Xian Yuyin would rather garrison his troops in Xinchang, which was less than a hundred miles away from Xiangping, than take this risk.

In the era of cold weapons, none of the warring parties had the means to quickly destroy the walled wall, so if the situation was not completely dominant, it was rare to launch a suicidal siege battle, at most it was to threaten or feint to encircle three places and lack one place, after all, well-trained soldiers were limited, and if they were all lost under the fortified city, even if they got this city, it would be a problem to rule and defend in the future.

Liu He's troops have fought no less than 100 major and small battles over the years, but they have not fought a large-scale siege battle, but often use the cover of the city to lure the enemy to attack, or lure the enemy out of the city and then fight in the field. If we talk about siege warfare, that is, after the Duliao army landed in the sea off the coast of the Yushi, it once besieged the city with 17,000 people and was only garrisoned by 2,000 soldiers.

Gongsun Du has been operating Liaodong for more than ten years, Xiangping City, as his old nest, is naturally built extremely strong and steep, plus there is Daliang Water in the north of Xiangping City, Da Liao Water in the west of the city, and there is a pseudo-water barrier in the east of the city, so even if Xian Yuyin led the army from the south to Xinchang City, which is less than 100 miles away from Xiangping, Gongsun Du still has the confidence to continue to hold on. He mobilized half of the warships of the naval division to the Daliao Shui, Daliang Shui, and Mulufu Shui, and cruied back and forth day and night to prevent the enemy army and spies from crossing the river and mixing into Xiangping to make trouble.

After the Western Route Coalition led by Xu Huang attacked Wuxi, he didn't stay too long, he let Tian Yu stay in the rear west of Yiwulu Mountain, and let Sun Li lead the Dragon and Tiger Guard infantry to garrison Wuwulu this transfer base, and then he took Zhang Nan and Zhang Kai two brothers to lead more than 10,000 cavalry to launch a sweep between Yiwulu Mountain and Da Liaoshui, and drove all the Murong Xianbei people scattered within a radius of one hundred and fifty miles between Wuwu and Danger back to the north.

When the officers and soldiers of the Gongsun Dushui Division, who were cruising on the Great Liao River, saw the Youzhou cavalry chasing and killing the Xianbei allies in the vast fields on the west bank, their feelings were complicated. Some people seemed panicked, some people hurriedly transmitted the news back to Xiangping, and some people privately speculated about when the Liaoxi army would force the Liaoshui River.

Although Gongsun Du in Xiangping City did not pin all his hopes of blocking Xu Huang's footsteps to Murong Xianbei, he did not expect Xu Huang to advance eastward so fast, and in less than half a year, he drove the Xianbei people who blocked the way out of Liaodong.

Gongsun Du's original idea was to drag the Youzhou two armies in Liaodong for a few years, and after the changes in the Central Plains, Liu He would be difficult to care about at that time, so he naturally wanted to transfer the troops of Liaodong back, after all, the Central Plains region is the key to winning the world, Gongsun Du did not believe that Liu He would continue to fight with him in Liaodong regardless of it, but he sat back and watched the warlords of the Central Plains seize the territory and finally complete the integration.

It's not that Gongsun Du hasn't thought about bowing to Liu He, but he feels that he hasn't reached the end of the mountain yet. Although the territory west of the Great Liaoshui has fallen into the hands of Liu He, and the southern part of the Liaodong Peninsula has also been occupied by the Liao army, the Xuansu County, which Gongsun Du made his fortune in the early days, is still there, and the Lelang County far away on the Samhan Peninsula has a lot of population and army.

What Gongsun Du regrets most now is that he was confused for a while, and listened to Gongsun Zhan's nonsense, so he sent 20,000 horses to Jicheng to assist Gongsun Zhan's younger brother Gongsun Yue in besieging Jicheng, which gave Liu Yu and his son the best excuse to take revenge now.

After learning that the Youzhou cavalry had approached the Great Liaoshui, Gongsun Du felt irritable, and what he was most worried about now was not that Xu Huang would immediately lead the army to force the crossing of the Great Liaoshui, but that the soldiers who stayed in the Liao team and along the line from Liaoyang to Wangping were shaken and did not dare to have a decisive battle with the troops led by Xu Huang. There is also something that worries Gongsun Du even more, once it enters the midwinter, the river surface of the upper reaches of the Great Liao River will form a thick layer of ice, and then Xu Huang can lead the army to attack Xuansu County first, and then copy it from the north, and form a north-south attack with Xian Yuyin in the south.

Gongsun Du thought about it and felt that it was time to ask his good neighbor in the north to help him, so he immediately sent his youngest son Gongsun Gong to Gaoxian City, the northernmost part of Xuansu County, accompanied by Liu Pu, to meet the lord of Fuyu County, and asked Fuyu to send troops into Xuansu County to help defend Xiangping.

At this time, the Fuyu Kingdom as the second largest country in the Northeast Region, the strength is second only to the Goguryeo in the east, and the specific location where they are located is located in the rich Songnen Plain of Jilin Province in later generations.

After Gongsun Du took control of the Liaodong region, he inherited and developed friendly relations with Fuyu State since the Han Dynasty. A few years ago, the two counties of Liaodong and Xuanfu were repeatedly attacked by Goguryi, and Gongsun Du was saved with the help of Fuyuguo. Gongsun Du has always valued the value of Fuyu as an ally, and Fuyu also needs the support of the Han regime to survive, so the two sides have always been good allies.

According to the regulations at this time, the jade box used for the burial of King Fuyu after his death needs to be pre-stored in Xuansu County, and now Gongsun Du sent his son to Fuyu to ask for help in person, and Fuyu is not for anything else, just for the jade box of King Fuyu, it is estimated that a large army will also be sent to guard Xuansu County for Gongsun Du. (To be continued......)