The next day, the vassal army, as always, chose to attack the city. For them, attacking the city was the best choice.

But they were disappointed that the red flame army was not as powerful as they could imagine.

On the third day, they didn't conquer Chengzhou either.

On the fourth day, 40000 infantry of the red flame army arrived. At this moment, Chengzhou city was an insurmountable gap for the vassal army. It was not easy to conquer Chengzhou city.

From then on, it was very likely that the vassal army would not attack the city, because their strength would not allow them to conquer the city.

According to military theory, the minimum strength of the siege side should be three times that of the garrison, otherwise everything will be in vain.

Now there are 80000 soldiers left in Chengzhou city. They dare not attack the city any more.

The red flame army's strength has made them feel some fear. I hope Datang will not send reinforcements again!

In their eyes, their Tubo state occupied the plateau area in the southwest of the Empire, and the Tang Dynasty would not spare no effort to attack them.

Because they have never failed in Tubo. As long as the Tang army dares to enter Tubo, they are confident that the Tang army will be destroyed.

At the same time, they believed that the emperor of the Tang Dynasty would not send troops to attack their Tubo state.

Because attacking Tubo meant defeat, and no emperor was willing to launch a war that would be defeated.

But this time, it is doomed to let them down, because Li Xian is what they can imagine.

A horse galloped fast, and the courier was very excited. He had seen Chang'an city.

"Chengzhou 600 Li express!"

…………

While running, the courier shouts, and the pedestrians on both sides of the official road all give way quickly, which can't be delayed.

According to the law of the Tang Dynasty, no one can stop the imperial court from reporting 600 Li, even if it is the imperial court's strategy.

Although the courier rode fast through the crowd, all of them made a bold guess.

"Big brother, where is Chengzhou?"

"Chengzhou is the southwest border town of the Tang Dynasty. Has Chengzhou been attacked?"

"It seems that the only country that can attack Chengzhou is Tubo. Did Tubo declare war on Tang Dynasty?"

Countless people began to guess. In fact, they were right, because unless Chengzhou was attacked, why would Chengzhou send 600 Li emergency?

"Chengzhou 600 Li express!"

Immediately Chengzhou's postmen came to luantai.

Luantai immediately reports to di Renjie and Liu Bowen after receiving the news.

After receiving the urgent Tang report, di Renjie and Liu Bowen immediately rushed to the palace. At the same time, Li cunxiao, the general of the auxiliary country and the commander of the white tiger army, also entered the palace together.

"Your Majesty, prime ministers Di Renjie, Liu Bowen and General Li cunxiao are here to see you."

A maid in waiting reported.

"Let them go to the study."

"It's your majesty."

The palace maid said immediately.

Li Xian knew that something big had happened, otherwise Li cunxiao, the two prime ministers and the Assistant General of the state, could not have asked for an interview at the same time. Even this big event was beyond his imagination.

Li Xianping regained his mood and walked towards the upper study.

"Your Majesty, I have just received a 600 Li urgent report from Chengzhou, saying that Chengzhou is in urgent need."

"Your Majesty, I inquired about the postman. The vassal army of Tubo country attacked Chengzhou. It seemed that they wanted to take Chengzhou and attack our Dynasty."

"Well! It's arrogant of a small vassal state to attack us in the Tang Dynasty

"Your Majesty, Tubo can't be underestimated! They occupy the cold plateau, we want to calm down is not easy

"General Li, what do you think?"

Li Xian looked to

"Your Majesty, please fight!"

"Although the ability of Mei Changsu, the governor of the western state and the red flame army, to defend the whole Chengzhou is not a problem, it is almost impossible for Mei Changsu to counter attack. After all, he has only 50000 elite red flame army."

"Your Majesty, you must think twice before you act. Don't be impulsive."

In di Renjie's memory, once the army of the Central Plains Dynasty entered the Tubo state, it was waiting for extreme maladjustment. If they did not see the enemy, they would have suffered a heavy loss. At this time, when they were attacked by the enemy, they might be completely annihilated.

"No! This time we must send troops, and we must destroy Tubo! I have made up my mind. "

"General Li, I've appointed you marshal of the western expedition. I'm ready to lead 200000 white tigers to the expedition." ..