After Li Yin recovered Hedong, some generals of the Sui Dynasty, counties and people who raised troops from all over the country also began to come to the Tang Dynasty one after another, Li Yuan issued an edict appointing Zhishilang Wang Bo as the governor of Qizhou, Fu De as the governor of Jeju, Zheng Qianfu as the governor of Qingzhou, Wang Xiaoshi as the governor of Cangzhou, and Qi Gongshun as the governor of Huaizhou. 23us．

Qi Gongshun is a force that has recently emerged in the areas of Beihai County and Hailing County.

At the beginning, Qi Gongshun, a thief in Beihai, led his 30,000 men to attack the county seat, and had already captured the outer Guo of the county town, and then attacked Zicheng; The food in the city was eaten up, and Qi Gongshun thought that he would be able to capture it soon, so he was unprepared.

Liu Lancheng, a native of Beihai County who had passed the Ming Economic Branch, gathered more than 100 Xiaojian in the city, and attacked the Qi Gongshun military camp by surprise, and the existing soldiers in the city saw the chaos of the Qi Gongshun military camp, and also followed out of the city to attack with Liu Lancheng and them, Qi Gongshun was defeated, abandoned the camp and fled, and the Beihai County was preserved.

As a result, the county magistrate and the big clan divided the people in the city into six armies, each of which was under their own command, and Liu Lancheng was also able to lead one of the armies because of his merits.

But there was a person named Song Shuzuo, who did not agree with Liu Lancheng, and was jealous of Liu Lancheng's talent, so he divided the Beihai armies and said: "Lan Cheng won the hearts of the people, and it will inevitably be unfavorable to you in the future, so it is better to strike first and kill him now." ”

What Song Shuzuo said was exactly what the generals of the Beihai Army were worried about.

So the generals of the Beihai army began to have suspicion of Liu Lancheng, and one day took advantage of his unpreparedness, suddenly attacked, and captured Liu Lancheng, but everyone because of Liu Lancheng's merits, they couldn't bear to kill Liu Lancheng, and only took his troops and handed them over to Song Shuzuo to command.

Liu Lancheng was worried that he would not be able to escape the disaster in the end, so he fled and defected to Qi Gongshun, who was very happy about Liu Lancheng's refuge and wanted to embrace him as the leader, Liu Lancheng resolutely resigned, so Qi Gongshun took him as his long history, and the affairs of the army were subject to Liu Lancheng.

After more than 50 days of Liu Lancheng taking refuge in Qi Gongshun, he began to plan Beihai County for Qi Gongshun.

On this day, Liu Lancheng selected one hundred and fifty people from the army, and then personally took these one hundred and fifty people to Beihai County to loot.

When he was forty miles away from the city, Liu Lancheng left ten of them and ordered them to mow more grass and divide them into more than 100 piles; Twenty miles from the city, twenty more men were left behind, and they were each to carry the banner; Five or six miles from the city, thirty men were left behind, lying in ambush in a dangerous place.

After that, Liu Lancheng led ten people by himself and quietly ambushed more than a mile from the city in the middle of the night; The remaining eighty men were placed in convenient places, and it was agreed that they would immediately snatch the men and animals at the sound of drums, and then leave immediately, and at the same time set fire to the haystacks.

The next morning, the city saw that there was no smoke and dust in the distance, so they opened the city gate and let the people chop wood and graze. (There are many grasslands in Beihai County, so most of the people are half-ploughing and half-grazing.) ）

Nearly noon, Liu Lancheng led ten people to the city gate, the city wall was beaten with drums and alarms, Liu Lancheng's 80 ambush soldiers attacked everywhere, robbed more than 1,000 heads of various livestock, and people who cut wood and graze, and then withdrew. Liu Lancheng estimated that the looters had already gone away, and slowly walked back.

Although there were troops in the city, they were afraid of ambushes and did not dare to chase after them; Seeing flags and fireworks in front of him, he didn't dare to move forward, so he retreated.

Not long after, the generals in the city regretted not chasing after Liu Lancheng brought few people last time, and swore that they would not let Liu Lancheng deceive him next time.

After more than a month, Liu Lancheng led his troops to Beihai County again, this time without any tricks, and personally brought twenty people directly to the city gate. The people in the city rushed out of the city to chase, and after walking for less than ten miles, Qi Gongshun led a large army suddenly appeared and defeated the soldiers of Beihai County.

Soon after the army in the county broke and fled back to the city, Qi Gongshun marched and surrounded the county town, the people in the city were panicked, Liu Lancheng told the people in the city, every time he said a word, the people in the city rushed out of the city to surrender, and Beihai County was captured by Qi Gongshun.

Liu Lancheng comforted the old man and children, respected the officials in the county very much, and when he saw Song Shuzuo, who had framed him, Liu Lancheng was as polite as in the past, so he gave him money and sent him away from Beihai County, and he was not harassed inside and outside the city.

At that time, the thief commander Zang Junxiang, who occupied Hailing County, heard that Qi Gongshun occupied Beihai, so he led 50,000 people to fight for Beihai County.

Liu Lan became Qi Gongshun to make suggestions: "Zang Junxiang is still far from here now, he must not be guarded, please general, you can march quickly to attack his military camp." ”

Qi Gongshun followed his advice, personally led 5,000 brave men, carried dry food, and marched quickly to attack Zang Junxiang.

When it was about to arrive, Liu Lancheng and twenty soldiers who dared to die went first, fifty miles away from Zang Junxiang's camp, and saw Junxiang's men who went out to plunder and walked towards the camp shoulder to shoulder, Liu Lancheng and his men also carried vegetables, grains, and cooking utensils to pretend to be robbers, and took the opportunity to conduct reconnaissance and learned the name of the other party's military number and the name of the main general.

In the evening, Liu Lancheng also entered the camp side by side with the enemy people, walked around the camp with things on his back, and learned about the reality of the enemy camp and the code of the guard on duty at night.

So Liu Lancheng cooked in the open fire, to the third watch, suddenly in front of the main general Zang Junxiang's tent together to pull out a knife and slash, killing more than 100 people, Zang Junxiang's army was disturbed, the camp was chaotic, Qi Gongshun's main force also arrived at this time, rushed to attack the enemy, Zang Junxiang's army was defeated, Zang Junxiang escaped alone.

Qi Gongshun and others captured and killed thousands of people, captured Zang Junxiang's supplies, food and weapons and returned to the division, Qi Gongshun's men and horses were greatly strengthened, and then captured Hailing County.

When Li Mi still occupied Luokou, Qi Gongshun led his subordinates to attach Li Mi, and when Li Mi failed, Qi Gongshun successively took refuge in Wang Shichong and Dou Jiande, and recently heard that Li Yin recovered Hedong, Li Tang's momentum became more and more powerful, Liu Lancheng persuaded Qi Gongshun to surrender to the Tang Dynasty.

A force like Qi Gongshun, although it still controls its own territory after the Tang Dynasty, the Tang Dynasty cannot fully command their people, but this undoubtedly strengthens the momentum of the Tang Dynasty.

On December 15, Li Yin led an army of 50,000 troops from Jinyang to attack Luzhou, which was occupied by Li Mi, and fought with Yu Mangfu Pass, the assassin of Luzhou appointed by Li Mi.

Li Mi's thief was not dead, and he actually attacked the Tang army, almost causing Li Yinbing to be defeated, and what is even more hateful is that when he was defeated, he also sent people to attack and kill Li Xiuning, which is really unbearable!

Therefore, after Li Yin let the army rest for a while in Jinyang, he immediately led his troops out of Jinyang and came to attack Luzhou, wanting to capture Li Mi in one go.