The History of the Three Kingdoms records that Guan Yu conquered Fancheng at that time and designed to cut off Guan Yu's back road and attack Shu. At that time, although Fancheng was to be attacked, there were troops stationed in Nanjun, fearing that people from other countries would sneak attack. When Lv Meng learned the news, he wrote to Sun Quan that he could recall the country on the pretext that Lv Meng was ill, but in fact he was confusing Guan Yu, letting Guan Yu relax his vigilance, or further attacking Shu.
Sun Quan thought Lv Meng's suggestion was very good, so he adopted it. At that time, Wu Jun spread the news of Lv Meng's illness everywhere. After hearing the news, he withdrew the soldiers stationed and let them attack Fancheng with Guan Yu. At that time, Guan Yu's campaign took away most of the troops of Shu, so the defense of Shu became very weak. At that time, Lu Meng asked some of his soldiers to hide in the boat and put on white paddles, while others pretended to be businessmen to confuse Guan Yu's eyes.
At that time, Monroe was not found by Guan Yu's soldiers when she arrived at Shuguan. Because of this attack, the officials of Shu in North Korea were caught off guard at that time, and they had to surrender to save themselves. When Guan Yu heard the news and rushed back to Nanjun, he found that Lv Meng did not kill the people in Nanjun, but was very friendly to the people in Nanjun. So he had to give up. On the way to Maicheng, Sun Quan's army cut off the back road. Guan Yu and his son were both killed by Sun Quan. At that time, people celebrated crossing the river in white, but in fact, soldiers were not dressed in white. Generally speaking, white clothes mean ordinary people, so the real meaning of crossing the river in white clothes is actually ordinary people rowing.