In the second year of Xingping of the Han Dynasty, in April 195 AD, Liu Bei's troops Guan Yu and Chen Deng recovered Guangling County, and Liu Bei personally led the army to recover Donghai County under the repeated tactics of the military division Gao Ping, and the rebellion in Xuzhou that lasted two months was finally put down, and in addition to Langya, other counties in Xuzhou were finally owned by Liu Bei in the real sense.

However, at this time, the greater threat was quietly coming, when Liu Bei, Guan Yu and others returned to the army in victory, Huainan Yuan Shu finally sorted out the soldiers, horses, money and food after attacking the Lujiang River, with Ji Ling as the general, Chen Ji, Lei Bo, Han Xian, Chen Lan four people as deputy generals, Yuan Yin to join the army to raise 50,000 troops to kill Xuzhou. Ji Ling's army from Xuyi, through Hongze Lake, all the way to Pingchuan, the pioneer Chen Lan led 5,000 troops but three days to connect the five counties, but after capturing Si County, when Ji Ling's army advanced to the north, finally met Zhou Cang, who was sent here by Gao Ping in advance.

The 600 people of the Feilong Battalion led by Zhou Cang plus the 400 light cavalry temporarily transferred from Zhang Fei, a total of 1,000 cavalry had already been ambushed in the hills and forests in the north of Si County

Gao Ping asked Zhou Cang to take advantage of the hidden geographical advantages of the local mountains, forests and hills, coupled with the mobility of the cavalry, and explained in detail in the vernacular two tactics: guerrilla warfare and sparrow warfare, that is: the enemy advances and we retreat, the enemy is stationed and disturbs, the enemy is tired and I fight, and the enemy retreats and I pursue. If you come, I will fly, if you go, I will return, if there are many people, you will run, and if there are few people, you will do it.

The enemy advances and we retreat, conserve strength, and wait for the opportunity to divert the offensive. Second, the enemy retreats and advances, which will blow its morale and accumulate small victories into big victories. 3. The enemy is stationed to disturb us, and constantly harass the enemy in order to exhaust the enemy and create a situation favorable to us. 3. When the enemy is tired of fighting, we should concentrate our forces and take the initiative to attack in order to annihilate the enemy. Concentrate on operations and disperse guerrilla warfare to determine the chances of victory; Advance and retreat in great strides, lure the enemy deep, concentrate forces, break through each one, and annihilate the enemy in a mobile war. At the same time, Gao Ping also arranged a brief operational deployment and other details to let Zhou Cang act on the spot.

After Zhou Cang understood Gao Ping's strategy again, he opened his mouth wide, and he didn't say anything for a long time, and finally shouted in everyone's puzzled eyes, "The military advisor is really a god and a man"

Ji Ling pioneer Chen Lan just left Si County, and met Zhou Cang's 1,000 elite horsemen, Zhou Cang came out of the crowd, shouting: "I am Zhou Cang, the general under the account of Uncle Liu Huang of Xuzhou, Yuan Shu'er offended me in Xuzhou for no reason, and you dare to fight with me."

Chen Lan had never heard of Zhou Cang's name, and said with a smile: "Chen Lan, the pioneer under the account of the queen's general, only knows that Liu Bei's subordinates Guan Yu and Zhang Fei are still some bravery, where did you come out of the mountains and wilderness, this way I have fought and won a success, and I have not met a commander of the army, and I just killed you today to sacrifice the flag."

The two of them staggered, swords and guns at the same time, three rounds later, "Keng" gold and iron crossed, the two fought hard, Chen Lan shook slightly on the horse, and felt the tiger's mouth numb, and said in his heart This person has a lot of strength, I should deal with it carefully. And Zhou Cang also saw that Chen Lan's martial arts were not as good as himself, fighting horses and raising swords, the more he fought, the more brave he became, now Zhou Cang has received many instructions from Guan Yu, and his martial arts have improved not a little bit, although he can't enter the list of first-class generals, but it is more than enough to deal with Chen Lan, less than twenty, Chen Lan only has the ability to parry, and has no power to fight back, the two horses are staggered again, Zhou Cang found a flaw, and slashed Chen Lan's left shoulder with a knife, blood gushed out along the blade, Chen Lan was in pain, and wanted to escape.

"Bah" Zhou Cang shouted, slashed Chen Lan under the horse with a knife, jumped off the war horse, shook his head, carried Chen Lan's head and shouted at the frightened soldiers opposite: "Go back and tell your master, if you dare to offend my Xuzhou, this person will be the end, hahahaha!" ”

Zhou Cang laughed and turned over on his horse, and waved his big knife: "Kill" Behind him, a thousand elite horsemen roared and followed Zhou Cang to kill Chen Lan's defeated army, Chen Lan's troops saw that the lord would be beheaded, the army had no fighting spirit, and fled in all directions, and was killed by Zhou Cang for a while and beheaded more than 1,000 people, and the defeated army returned to Si County to report to Ji Ling, Ji Ling heard that the pioneer was killed, and personally raised the army to fight Zhou Cang, but Zhou Cang has long been gone

After that, Zhou Cang divided the troops into zero, a team of every 200 people, striking east and west, flickering south and north, fighting if he wins, and leaving like a sparrow pecking if he can't win, one shot in the east and one knife in the west, gathering and scattering, coming and going, jumping here and there in the nearby hills and forests, jumping there for a while, and taking the enemy by surprise. It's hard for Ji Ling's army.

Ji Ling's army was just about to set up camp, a group of men and horses roared, on the horse with a bow and arrows to shoot fiercely, shoot after shooting, Ji Ling divided his troops to pursue, then was surrounded by various traps in the mountains and forests, and the soldiers of the Flying Dragon Battalion twisted the enemy, the physique of the soldiers of the Flying Dragon Battalion was one to ten, a fierce beating, each eaten. If Ji Ling stayed close to the camp and didn't pay attention to it, then no matter day or night, Zhou Cang would patronize it from time to time, shouting to kill the heavens, so that the army could not sleep peacefully.

Ji Ling's army counts the scouts, there are only 8,000 cavalry including the generals' personal soldiers, and in a few days, 4,000 people have been eaten by Zhou Cang, Ji Ling has also commanded the army to enter the mountains and forests to encircle and suppress it with all his might, but Zhou Cang and others are like evaporating from the world, and there is no trace of them, and after searching for half a day, when Ji Ling angrily collected his troops and returned to the camp, Zhou Cang's cavalry followed the rear wing of the army to chase after him, and when Ji Ling organized the army to counterattack, they killed dozens of people and fled with a roar.

In the face of the enemy coming and going like the wind, Yuan Yin, who joined the army, suggested that Ji Ling leave him alone and directly cross this mountain forest to attack Lingbi, but how could Zhou Cang let Ji Ling get his wish, and followed the army to constantly harass its grain and grass, Ji Ling was unable to fight and fight, chased and couldn't catch up, couldn't shake off and couldn't get rid of it, couldn't eat well, couldn't sleep, fell into a restless and embarrassed situation, and the soldiers were exhausted by Zhou Cang, but Zhou Cang had few soldiers after all, although he kept harassing Ji Ling, However, Ji Ling still paid the price of more than 10,000 people and slowly advanced to the outside of Lingbi City, and Zhou Cang's troops also lost more than 300 people, of which the Flying Dragon Battalion lost seventy or eighty people, which were all the elite of the elite, Zhou Cang's flesh hurt.

Ji Ling's army attacked Lingbi, Zhou Cang converged with Lingbi 1,000 county soldiers without a fight, retreated into Yunlong Mountain in the north, Lingbi to Xuzhou If you don't take Yunlong Mountain, then you have to go east around Xiao County, Jiuli Mountain, or go west to capture Huai'an and other places, but Jiuli Mountain is rampant thieves, Chang Feng and others gather tens of thousands of people here, Ji Ling will not touch Chang Xuan's eyebrows anyway, not to mention Huai'an, Guan Yu, Chen Deng and others are leading 10,000 troops from Guangling to return to Xuzhou, on the way to Huai'an, If he was held back by Guan Yu's people and waited for Liu Bei to gather all over Xuzhou, then Ji Ling might not be able to return to Shouchun.

So knowing that Zhou Cang and others were ambushed in Yunlong Mountain, but Ji Ling still rushed to Yunlong Mountain, according to Yuan Yin, Yunlong Mountain did not block the official road, let Zhou Cang harass, as long as our army did not disperse and quickly crossed Yunlong Mountain, and arrived at the plain area behind it, there was no cover, he Zhou Cang had no geographical advantage, and with more than 1,000 people, he would not dare to entangle with our army.