After Cao Cao defeated Yuan Shao, Yuan Shao's son Yuan Shang fled to the Xiongnu and joined forces with Shan Yu, Cao Cao recruited Yuan Shang and met the enemy army at Liucheng, Zhang Liao urged Cao Cao to attack, the morale was high, Cao Cao agreed, Zhang Liao led his troops to attack, achieved a great victory, and killed Shan Yu in a battle, which is the famous "Battle of White Wolf Mountain" in the history of the Three Kingdoms at the end of the Han Dynasty.
Zhang Liao was able to cut shan Yu Jiandun, a person helped a lot, he proposed a plan, was adopted by Cao Cao, without his strategy, coupled with his help, it is difficult to kill Shan Yu Jiandun, who is this person?
This person's name was Tian Yu (169-214), Zi Tai, a native of Youbei ping Wuxian (present-day Yutian County, Hebei Province, now Yutian County).
So, what strategy did Tian Yu propose? How did Tian Yu help?
At that time, it was just in the summer, it was often raining, there was a lot of water, and many places were muddy and difficult to walk, and the thieves guarded the dangerous road sections, and Cao Cao's army was difficult to march. At that time, it was not like the asphalt roads everywhere now, spacious and easy to walk.
Tian Yu said that this road often accumulates water in summer and autumn, shallow places can not be open to horses, deep places can not be boated, has a long history, the original Beiping County ruled in Pinggang County, from Lulongsai straight to Liucheng, since the Han Guangwu Emperor Jianwu years, interrupted for almost two hundred years, but there is still a hidden path can be found. Now the enemy brigade of soldiers and horses is on the road to infinity, unable to advance, is retreating, slack and unprepared. At this time, if we lead the army to quietly return, cross the dangerous point of Baitan from Lulongkou, and then come out of the open area, the road is close and easy to walk, and if the enemy army is not prepared, surprised, and unprepared, the head of the gang can be captured without fighting.
Therefore, Cao Cao adopted Tian Yu's strategy, led the army back, and erected a large piece of wood on the side of the waterway, writing: Now in the summer, the road is impassable, and then enter the army in the autumn and winter. When the enemy scouts saw this, they thought that Cao Cao's army had retreated and let their guard down.
Cao Cao let Tian Yu and his subordinates act as guides, walked up Xu Wushan, out of Lulong, Li Pinggang, and Dengbai Wolf Pile, more than two hundred miles away from Liucheng, before the enemy army realized. Shan Yu personally went into battle, and Cao Cao led his army to engage him, winning a great victory and chasing him all the way to Liucheng.
The Chronicle of the Three Kingdoms records that Taizu said: "Goodness. Nai led the army back, and the big wooden table on the water side road said: "Fang this summer, the road is impassable, and in the autumn and winter, it is a compound march." "Waiting to ride and see it, I sincerely think that the army will go." Taizu ordered his people to be the village guide, go up Xu Wushan, out of Lulong, Li Pinggang, dengbai wolf pile, go to Liucheng for more than two hundred miles, yu Nai was shocked. Shan Yu was in the middle of the battle, and Taizu was engaged in battle, so he was greatly captured and chased north to Liucheng.
It was also in this battle that Zhang Liaoli slashed at Jiandun. This is also one of Zhang Liao's more brilliant achievements, which are very prominent and clearly recorded in the main history.
The Chronicle of the Three Kingdoms and the Biography of Zhang Liao records that from the conquest of Yuan Shangyu in Liucheng, the Liao persuaded Taizu to fight, and he was very angry, and Taizu was strong, and he thought that he was holding the Liao. Strike, break it, and chop it up.
In this battle, Zhang Liao was a pioneer and performed very bravely, not inferior to the later Battle of Xiaoyaojin, and Zhang Liao was praised by Cao Cao.
Just think, if it weren't for Tian Yu's surprise and unprepared plan, would Zhang Liao still be able to make such a great contribution?