What does it mean that Sun Quan sends his troops to cross the river, stops here, breaks it, and does not send his troops to cross the river?

"Sun Quan will send troops to Liyang to rest and stop, and he will not send troops to cross the river" means that Sun Quan will send troops to Liyang, Cao Xiu will lead an army to kill him, and Cao Xiu will send troops to cross the river and burn thousands of camps set by Sun Quan in Wuhu. This sentence comes from the biography of the Three Kingdoms Cao Xiuchuan, which describes the battle of Liyang of the famous Cao Xiu of the Three Kingdoms.

In the first year of Huang Chu (220), Cao Pi succeeded to Wang Wei, worshipped Cao Xiu as the leading general, and appointed the director of Dongyang Pavilion. In April of the same year, General Xia Houdun died, and Cao Xiu was immediately worshipped as General Zhennan, who was in charge of all military affairs and took over Xia Houdun's responsibilities in the eastern theater. When Cao Xiu left, Xelloss personally saw him off, deliberately got off the bus, took Cao Xiu's hand and walked a long way, reluctantly.

At this time, it was only two or three months before Cao Cao's death. Sun Quan thought there was an opportunity to take advantage of it and sent heavy troops to Liyang on the north bank of the Yangtze River, ready to wait for an opportunity. Unexpectedly, after Cao Xiu came to power, he had no intention of passive defense at all. He took advantage of Wu Dong's army's slackness, quickly attacked, and breached Liyang in one fell swoop. Later, Cao Xiu staged a rare feat in the Three Kingdoms period: fighting in Jiangdong.

Liyang County and Wuhu County are on both sides of the Yangtze River. After Cao Xiu attacked Liyang, he led troops across the river, burned thousands of barracks on the other side, and escaped by luck. Considering that the coastal areas in the north of the Yangtze River are actually controlled by Wu Dong, this record is quite shocking. In my impression, Wei and Wu both played in Yangzhou, but this time Cao Wei played in Jiangdong.

The greatest significance of this campaign is that Cao Xiu bypassed this and went straight to the other side. Although it was just a sneak attack, it was enough to make Sun Quan break out in a cold sweat and show Cao Xiuyong's fierce fighting style. Through this campaign, Cao Xiu was worshipped by Cao Pi as a general of the Eastern Expedition, led by Yangzhou secretariat, and entered Anyang Township. Cao Xiu, who grew up in Yangzhou, returned to his native land again. The difference is that Jiangdong Wu Jun, which once gave in to itself at the most embarrassing time, became an enemy.