A diversion from the East to the West is an idiom in Chinese, and it is a tactical and strategic thought that makes the other side have the illusion of winning by surprise. Militarily, it is a strategy of confusing the enemy and winning by surprise. Its own structure is joint, and it can be used as predicate, object and attribute in a sentence.
During the hegemony of Chu and Han, Hanwang Liu Bang led an army to attack Pengcheng, the capital of Chu. As a result, Xiang Yu's army was defeated and fled to Xingyang. At this time, many soldiers who had surrendered to Liu Bang saw that they had surrendered to Xiang Yu. After Liu Bang surrendered, Wei Wangbao left Han Ying and returned to his fief in Henan.
As soon as Wei arrived in Henan, he immediately blocked the Linjin Pass on the west bank of the Yellow River, cut off the retreat of the Han army and made peace with Xiang Yu. As a result, the Han army was caught between Scylla and Charybdis, and the situation was very critical. So Liu Bang sent to persuade Wei and mobilized him to take refuge in Hanwang. However, Wei Wangbao went his own way and refused to allow it. Liu Bang was very angry and sent general Han Xin to conquer Wei Wangbao.
When Wei heard the news, he immediately appointed Bai as a general and led heavy troops to closely defend the Sakan area on the west bank of the Yellow River to prevent the Han army from crossing the river. Han Xin led the Han army to the east bank of the Yellow River. When he saw Puban's dangerous terrain, it was easy to defend but difficult to attack, and the other side was heavily guarded. He knows it's hard to win from here. Therefore, Han Xin decided to use the tactics of "introducing from the east to the west" in Sun Tzu's Art of War to prepare for crossing the natural barrier of the Yellow River skillfully.
In order to confuse the white matter, Han Xin ordered a small number of military forces to camp on the other side of Puban, let them practice and patrol every day, and made a gesture that the Han army would cross the Yellow River from here, but secretly sent troops to transfer the main force of the Han army to the mouth of the xia yang River, ready to sneak into the Yellow River from xia yang and attack Wei.
Sure enough, Bai Zhi was tricked by Han Xin, thinking that the Han army really wanted to cross the river from Puban, he reported good news to Wei, saying that Puban's defense was very tight and rock-solid, and the Han army could never cross the Yellow River, so Wei could rest easy now.
Idiom moral:
Tactically, the key to moving from east to west is to transfer the target. It is about winning by surprise, confusing opponents with false appearances, creating the illusion of the other side, disguising the real target of the attack, and alternating things with flexible actions, that is, hitting and leaving.
If you don't attack, you will attack. If you want to attack, you will show that you don't attack. Seemingly inevitable, but it is not, seemingly inevitable; It seems that you can do it without doing it, but it seems that you can't. This is a common operational strategy when fighting with soldiers. Its main purpose is to make opponents take advantage of the situation, while I use my tactics to win by surprise.