During the campaign of Yan State attacking Qi State from 31 to 36 years in Zhou Nanwang (284 BC-279 BC), Tian Dan, the general of Qi State, led the Qi army, relying on the isolated Jimo City (now southeast of Pingdu, Shandong Province) to fight against the siege of Yan State army.

In thirty-one years, Yan led the five-nation allied forces to break Qi, connecting more than 70 cities, and then concentrated on besieging the only remaining Juxian County (now Juxian County, Shandong Province) and Jimo, and Qi was in danger. At this time, King Slip of Qi was killed by General Naoya of Chu in the name of saving Qi, and his son Zhang Fa was made king and occupied Ju 'an. After Dr. Jimo's soldiers and civilians died, * * * pushed Tian Dan as a general in Linzi City and firmly opposed Yan. Le Yi besieged Jimo City for a year, so the Yan army retreated nine miles and set up camp in order to win, which gave Qi a breathing space. Jimo, located in rich Jiaodong, is a big city in Qi. Backed by mountains and offshore, it has sufficient manpower and material resources for defense. Tian Dan then assembled more than 7,000 ethnic minority fighters and disabled soldiers for rectification and expansion.

Even his wives and concubines were incorporated into the military camp to take part in guarding the city and fight with the foot soldiers. "Weave grass while sitting, and shovel at once" (Thirty-six years of Zijian). Moreover, the city defense fortifications were built, the defense was strengthened, and the defense ability of Jimo was improved, so that the Yan army could station troops at the gates and win time for organizing counterattacks. He took advantage of the contradiction between the newly established Yan and sent people into Yan Hang to monitor him. He pretended that he often had a grudge against Yan and was afraid of being killed, so he didn't dare to return to China. He deliberately slowed down his attack on Jimo, in fact, he wanted to be king in Qi. If we send another commander, Jimo will point to the sun. Yan Xin believed it, and sent cavalry to rob instead of Le Yi as the general. Defected to Zhao. Yan Jun is divided in heart and divided internally. After riding to the state of Qi, they changed their tactics and launched a storm, but they were still not defeated. He also used terror to deter the Qi army.

Tian Chan played along and induced the Yan army to commit violence, claiming that the Qi army was most afraid that the Yan army would cut off the nose of the fallen soldiers. If it sees this, Jimo will collapse. Riding a robbery is really a trick. At first glance, Jimo soldiers and civilians strengthened their determination to defend the city, for fear of falling into the hands of the Yanjun. Tian Dan also claimed that the defenders were afraid that the ancestral graves outside the city would be dug, which made their souls helpless and their descendants knelt down and surrendered. Ride a robbery and immediately dig a grave and burn the body. The people of Jimo were heartbroken and vowed to fight Yan Jun to the end. In order to conceal the counter-offensive intention of the Qi army and make the Yan army lose their vigilance, Tian Dan ordered the elite soldiers to hide in the city and let the old, weak, women and children go into the city to watch. He also asked the rich people in Jimo to bribe them with a large sum of money, pretending that Jimo would surrender to Yan, and demanding to save his wife and children. Yan army besieged the city for more than three years, eager to stop fighting and go home. Seeing that their home is about to be completed, they are waiting for surrender, and their defense is more lax and paralyzed.

In thirty-six years, Tian Dan saw that the time was ripe for counterattack, so he concentrated on drying the remaining cattle, painting them with colorful dragon patterns, tying the weapon to the corner, and finally tying them with reeds soaked in oil. At night, the reeds at the oxtail were lit, and the scalpers rushed out of the pre-cut wall passage and rushed to Yan Ying Camp, and then 5,000 lean soldiers were chopped down. Soldiers and civilians in the city are beating drums, shouting and cheering. At that time, the flames were blazing and the sound of killing was deafening. Yan Jun soldiers woke up from their dreams, panicked, fled in all directions, suffered numerous casualties and died in the chaos. The Qi army took advantage of the victory to launch a large-scale counterattack, and soon expelled the Yan army from the territory of the State of Qi and recovered more than 70 cities occupied by the Yan army. Later, Zhang Fa returned to Linzi and became King of Qixiang. Tian Dan is the Prime Minister, whose name is Anpingjun.

In this battle, Tian Dan is superior in wisdom. Under the situation that the strength of the two sides was very different in the whole country, he stuck to the isolated city, paralyzed the Yan army and actively created the conditions for counterattack. When the time is ripe, the main reason for defeating the Yan army is to make full use of mobility, suddenness, lethality and psychological deterrence, and carry out a night attack with a "fire bull array". In addition, because Jimo has certain defensive conditions; Yan army divided troops and attacked Qi in multiple ways, which developed too fast and lacked preparation and strength for siege. Tian Chan cleverly used double agents to get rid of the most difficult Le Yi, which is also one of the reasons. Become a typical example in the history of China War.