Luo Guo had already asked Lu Guo for help in advance, and Lu Guo had the same surname as Chen Guo, but belonged to Rong Guo like Shen Guo. Lu and Luo had a marriage relationship, and they were afraid that once Luo was destroyed, their country would not be able to survive alone, so they sent troops to support the allies. The Chu army was focused on the direction of Luo, so there was no defense against the Lu people (because Lu was too small). Lu Rong quietly followed the Chu army, and when they saw the enemy reaching the outskirts of Luo, they hid in the jungle behind them and waited for their opportunity.

The Chu army arrived at the intended location in the afternoon and intended to attack early the next morning. However, the Luo people decided not to give the Chu army a chance to breathe, and the army suddenly launched an attack while the enemy was not firmly established.

Qu Fang was too arrogant, he did not take the enemy in his eyes, and he did not expect that the Luo people would dare to attack with a weak attack and take the initiative to attack. As a result, the defenseless and exhausted Chu army was suddenly in chaos. The generals hurriedly ordered to gather their troops and organize their defense. Just as the Chu army began to assemble in front of the Luo army, the Lu people rushed out from their hiding place and launched an attack from the back of the Chu army. The Chu army immediately tasted the bitterness of being flanked by the enemy's front and rear.

The Chu army could not figure out the identity and number of the enemy, and only felt that there were enemies on all sides; The Chu army was unfamiliar with the terrain and was scattered, but the enemy was good at fighting in the jungle. Later, the natives joined the battle, and they made a mess of the situation, and neither friendly nor enemy forces were accustomed to the natives' way of playing; The Chu army was soon unable to resist the enemy's offensive and collapsed.

The coalition forces still had no intention of stopping, and they kept chasing the Chu people until they drove all the enemies into Yanshui and did not stop attacking; The Chu army suffered heavy losses, and the corpses of people and the weight of chariots and horses blocked the flow of Yanshui.

This is the most painful defeat that the Chu State has suffered since its founding, and what is greater than the heavy loss of personnel is the confidence of a great power built up by several generations of Chu people over the past few hundred years.

Mo Ao made some very low-level mistakes such as light speed and light enemy, and his attention seemed to have never been on combat. At that time, according to the analysis of well-informed sources: the reason why the prince was not here was because one of his favorite concubines was about to give birth, and he was in a hurry to rush back to meet the soon-to-be-born child. However, the tragic ending not only caused the Chu State to lose many excellent warriors, but also made it impossible for Mo Ao to fulfill his last wish in life.

At this time, the reinforcements led by Lai arrived. Mo Ao handed over the remnants of the defeated army to Lai's and ordered him to lead the army to return to China directly, while Mo Ao took another path in the opposite direction to return to China. All the high-ranking officers under Mo Ao's command followed him, and the group stopped moving forward when they reached the barren valley (west of present-day Jiangling County).

Mo Ao gathered his subordinates together and said, "Even if I am just cautious and can listen to your advice, I will not end up today." This is a lesson and a warning from God to the State of Chu, and it is also a punishment for me, indicating that I am not qualified to become the future King of Chu, and it will not destroy the Sheji of the State of Chu in my hands. I want you to remember the saying: 'If you do not overcome, you will die!' 'Start with yourself! ”

Mo Ao's subordinates advised him not to cut himself off, but to wait for the order of the king of Chu, and the king of Chu would never execute his eldest son. But Mo Ao shook his head and said, "Even if the king forgives me, I don't have the face to see the king and his countrymen again." If my death can serve as a warning to future generations, and make the commander-in-chief no longer be rigid and arbitrary, so that the country will no longer suffer defeat, and the enemy will not dare to despise the Chu State, then my crimes can be redeemed, and my death will be worthwhile. ”

After Mo Ao finished speaking, he dismissed everyone, and he committed suicide by hanging himself after bathing and changing clothes. The generals collected the prince's body, and everyone was mentally prepared to be executed; The people imprisoned themselves in Yefu (present-day south of Jiangling County) to await orders from King Wu of Chu.

King Wu of Chu was a person with very strong self-control, but he still shed tears when he received the report of the defeat of the Chu army and the suicide of the crown prince. He sent a messenger to Yefu and said to the generals, "These are the sins of solitary criminals, and they have nothing to do with the doctors." Please return to China immediately and perform your duties, and don't aggravate the defeat of Chu and the victory of the enemy! ”