Idiom from:
"Historical Records: The Biography of Sun Tzu Wu Qilie": "If you don't lead the troops to walk the beam, according to its streets, rush to its side, he will release Zhao and save himself." It was I who relieved the siege of Zhao in one fell swoop and took advantage of Wei Ye. ”
In 354 BC, in order to avenge the loss of Zhongshan, King Wei Hui sent the general Pang Juan to attack Handan, the capital of Zhao, and Zhao asked Qi for help.
After King Qi Wei received Zhao Guo's call for help, he immediately appointed Tian Ji as a general and Sun Bin as a military advisor, and led a large army to the rescue. Tian Ji wanted to go straight to Handan to relieve the siege, but Sun Bin dissuaded: "Now that the main forces of Wei are concentrated in Handan, its domestic forces must be empty, and we can lead troops to attack its capital Daliang." In this way, the Wei ** team will definitely withdraw troops from Handan to relieve the siege of Daliang. After saying this, Sun Bin looked at Tian Ji, smiled mysteriously, and continued: "At that time, we will set up an ambush in Guiling, where the Wei army is passing through on the way back from the retreat, and attack them, and the siege of Zhao will naturally be resolved. ”
What a brilliant idea!Tian Ji listened to Sun Bin's plan and jumped up with joy. So, Tian Ji led his troops straight to the beam.
Sure enough, as Sun Bin expected, King Wei Hui saw that the army of Qi was coming violently, and hurriedly ordered Pang Juan to return to China to rescue. After Pang Juan received the order, he had to abandon Handan and rush back day and night. When the Wei army traveled a long distance to Guiling, they suddenly heard the sound of drums like thunder, and the shouts of killing shook the sky. The Qi army rushed over from all directions, all like tigers going up the mountain and dragons going down to the sea, killing the Wei army to lose their armor and flee in all directions.
This is the story of "Wai Wei to save Zhao". Now, "encircling Wei to save Zhao" refers to the tactic of outflanking the enemy's rear and forcing him to withdraw his troops.