In the first month of 22 AD, the Green Forest Army broke Wang Mang's army and surrounded Nanyang, and the Green Forest Army also expanded rapidly, growing to 100,000 people.
In February 23 AD, Liu Xuan proclaimed himself emperor in Huaiyang and sent troops to attack various places. The successive victories of the rebel army made Wang Mang terrified. He sent Da Situ Wang Xun and Da Sikong Wang Yi to lead 420,000 elite soldiers, known as one million, to Wancheng. After the Mang army arrived at Yingchuan, they approached Kunyang and surrounded Kunyang City. There were only 1,000 soldiers in the city. Wang Feng held his position on the one hand, and sent Liu Xiu and other thirteen light horsemen to go out of the city at night to ask for help. Although the number of troops supporting Kunyang was small, the fighting spirit was strong. The reinforcements and the soldiers in the city should be combined with the outside, and the internal and external attacks were attacked, so that Wang Mang's army fell into the water, and Wang Xun was killed. This is the famous Kunyang Battle of the New Han Dynasty in history.
The Battle of Kunyang destroyed Wang Mang's main force and won a decisive victory in the Peasant War in the early years of the Western Han Dynasty. After the Battle of Kunyang, the Green Forest Army continued to develop a powerful campaign against Wang Mang. They divided into two routes, one to attack Luoyang, and the other to attack Chang'an. Both armies made rapid progress and soon captured Luoyang, and Liu Xuan also moved the capital to Luoyang. Soon, Chang'an was also breached, and Wang Mang was killed.
After six years of bloody fighting, the Green Forest Army finally overthrew Wang Mang's rule and won the victory in the anti-mangling struggle.