The one you mentioned was Yang Hu who was stationed before the destruction of Wu. After the death of Lu Kang, there were no famous generals in Soochow. He wanted to attack Soochow but was blocked by the ministers of the court. Finally, before his death, he recommended Du Yu to fight against the annihilation of Soochow. Wu has made great contributions.

Now let’s talk about the theme. Yes, Sun Tzu’s Art of War is right and inappropriate ~ it’s just inappropriate to delay it for too long, because delaying it for too long will be a heavy burden on our own people, wasting people and money, and didn’t read Han Emperor Wu's few wars consumed all the capital saved by Emperor Xing and Emperor Wen. The Sui Dynasty conquered Goryeo three times and finally the country was destroyed. However, sometimes it is a taboo for military strategists to act too hastily. If the foothold is not stable, there will not be many punches if the fist is not retracted. Strength must be accumulated in order to win with one blow. The prerequisite is that there must be sufficient support from the rear, the support of a wise king, and strong morale. Otherwise, it will definitely not work if the soldiers are tired for a long time. And before launching a general offensive, harassment warfare is certainly indispensable to keep soldiers alert and eager to attack. The most important thing is that you have forgotten that Sun Tzu also said that war is impermanent~