After Gao Buer's goal of chasing Li Zitong in the north was achieved, he did not immediately send troops to attack Lin Shihong, but successively sent people to take over Jiujiang County and Jiangxia County, which were still in the hands of the imperial court, as well as Xuancheng, Xin'an, Huiji, Dongyang, Yongjia, Poyang and other six counties around Hangzhou, and at the same time sent 5,000 men and horses to strengthen the defense of Jiangxia, Jiujiang, Poyang, and Yongjia counties, in preparation for the attack on Lin Shihong in the south.

Just when Gao Buer was preparing to go south, in 617, Dong Jingzhen, Lei Shimeng and others, the lieutenants of Baling, raised troops against the Sui Dynasty, and elected Xiao Mill, a descendant of Emperor Wu of Liang of the Liang Dynasty, to be the main one, entrenched in Baling. Xiao Mo appointed Shen Liusheng as the general of the chariot cavalry, and the counties near and far vied with each other, and the number of soldiers and horses reached more than 60,000.

When the news reached Hangzhou, Gao Buer asked Xiao Yumei: "This Xiao Mill is from the same clan as his wife?" ”

Xiao Yumei glanced at Gao Buyi and said, "It should be a child of the side branch, if the husband needs it, the concubine will go and look up the family tree and take a look." ”

Gao Buer pulled Xiao Yumei, who turned around and wanted to leave, and said: "That's not necessary, I can't let my wife bother with these relatives who can't beat the eight poles, and prepare to lead the troops south for my husband, and the rear will be handed over to Mrs. You, because my husband is not there, I ask Mrs. to do all the important tasks of soldiers, horses, money and food." ”

Hearing this, Xiao Yumei frowned and said: "Husband, be careful, you don't have to worry about the concubine here, but the little sister has always been worried about Jun Niannu in Jinling, and has said that she will go to Jinling to pick her up many times, but she has not been found in Jinling yet." The little sister saw that you were busy with military affairs and never spoke to you. ”

Gao Buer pulled Xiao Yumei's soft and said: "Let the little lady rest assured, when the husband has pacified the Lin Shihong rebellion, I will immediately accompany the little lady to Jinling, and when the time comes, we will go to find it in person, and we will definitely find it." ”

After that, he went out of the house, this time to the south, Gao Buer also prepared to divide the army into two roads, one way 40,000 people led by Li Jing and Hongfu Nu from Jiujiang County, straight to Yuzhang County, and the other 20,000 people led by Gao Buer and Zhang Zhongping, starting from Poyang County, capturing Linchuan County, and then going down along Xushui, and Li Jing and Yuzhang County, and then the army went all the way south to Nanhai County, completely eliminating Lin Shihong.

Gao Buer began to move south in July, but in the same month, a war occurred north of the Yangtze River that directly led to the fall of the Sui Dynasty, that is, more than 100,000 Wagang troops under the leadership of Zhai Rang and Li Mi advanced to attack the Sui Dynasty's newly built Xingluo warehouse in Luoyang.

Yang Tong, the king of Yue who stayed in Luoyang, sent Liu Changgong, the general of Hu Benlang, to lead the army to meet the enemy, but was defeated by the Wagang army, and the army lost five or six out of ten, and the Wagang army took advantage of the situation to attack Luoyang, and Luoyang was in a hurry.

In order to understand the danger of Luoyang, Yang Guang transferred Xue Shixiong, who was fighting against Dou Jiande in Hebei, to the south, and mobilized a large army from the counties north of the Yangtze River to Luoyang, and Xue Shixiong served as the governor of the capital to lead the Luoyang military, but Xue Shixiong was killed by Dou Jiande before he left Hebei.

When the news came, Yang Guang immediately panicked, didn't know who to send as a general, thought for a long time, and thought of Wang Shichong, who had made meritorious contributions to quelling the chaos last year, and was named the Jiangdu Tongshou, and now he is by his side, has prestige in the army, and will fight. So he immediately asked Wang Shichong to enter the palace.

Wang Shichong came to the palace and paid homage to Yang Guang. Yang Guang left his seat to help each other and said: "Qing is the pillar of the country, and now the situation in Luoyang is critical, I am ready to order you to be the governor of the capital, and I will transfer soldiers and horses from various counties to be led by you, I don't know if you are willing?" ”

Wang Shichong was already at odds with Yu Wenhua, and he fought in private in Jiangdu, but the Yuwen family had a meritorious contribution to Yang Guang, and he was no matter what he did, in line with the principle of staying away if he couldn't do it, Wang Shichong had been planning to leave Jiangdu, but he didn't expect the opportunity to come so suddenly, and it was a big pie smashed over.

Wang Shichong did not show that he wanted to leave Jiangdu urgently, and only said: "Your Majesty has an order, and the minister will not dare to disobey, but the minister heard that our army suffered huge losses in the previous battle with Wagang, and I don't know how many men and horses Your Majesty transferred to Luoyang." ”

Yang Guang's expression froze, and now most of the counties are still in the hands of the imperial court in name, in fact, how many people are still obedient, Yang Guang does not dare to guarantee, you ask him how many troops he can mobilize, isn't this Chi Guoguo slap in the face, but now is not the time to be angry, Yang Guang pondered for a while and said: "I allow you to take away more than 20,000 people and horses that you belong to, plus those mobilized from other places, there will be at least more than 100,000, and we can basically equal the number of thieves, you can rest assured." ”

Of course, Wang Shichong didn't believe Yang Guang's words, but when he heard that he could take away all the people he belonged to, he was overjoyed, and now he left Jiangdu, he would also have the capital to settle down.

So he immediately expressed to Yang Guang that he was willing to go to Luoyang. Wang Shichong arrived in Luoyang, and the soldiers and horses sent from all over the country also came one after another, although there were not more than 100,000 as Yang Guang said, but they scraped together and made an army of more than 90,000 people, which also made Wang Shichong overjoyed.

After the army was reorganized, Wang Shichong led the army to Luokou to fight against the Wagang army.