After Jieli Khan and Tuli Little Khan led a large army to break through Yuanzhou, they advanced overnight and went straight to Chang'an.

At the same time, in order to prevent Li Yuan from mobilizing local troops to support Chang'an, Jieli Khan sent troops to attack Xinzhou, Suizhou, Bingzhou and other places, and ordered his vassal state Tuyuhun to send troops to attack Shanzhou.

The situation became critical in an instant.

Li Yuan hurriedly ordered and declared martial law in Chang'an.

After Wang Yu heard the news, he asked Li Yuan: "Father, this time Jieli Khan is menacing, and he will never stop until he achieves his goal."

"The second brother and the fourth brother are on the front line to resist the Turks, and they are not talented, so they are willing to share their father's worries and lead troops to support."

Li Yuan frowned: "I can't transfer troops to you now." ”

Seeing that Li Yuan did not object, Wang Yu was overjoyed and explained: "My son doesn't want his father's soldiers, there are currently nine hundred and sixty guards in Princess Jinyang's Mansion, and it is enough to have them." ”

Li Yuan thought about it and refused again: "No, it's too dangerous for a girl to go to the front line." ”

"Father." Wang Yu suddenly raised his voice: "I am not afraid of danger, and I can ensure my own safety, please ask my father for permission." ”

"This ......" Li Yuan looked at the stubborn Wang Yu, thinking that if he didn't agree to this girl, I was afraid that she would act on her own, so he said: "Okay, but you can't go to the front line." ”

Wang Yu was overjoyed: "Okay, I will go wherever my father tells me to go." ”

Li Yuan pondered for a while and said, "You go to support Qizhou." ”

"Yes."

Wang Yu happily agreed.

Qizhou is in the northwest of Chang'an, Jieli Khan descended from Yuanzhou, if he did not make a detour, he had to pass through Longzhou and Qizhou, and Li Shimin and Li Yuanji were in Longzhou at the moment.

At that time, it rained heavily in Longzhou for several days, many bridges and roads were blocked, the march was difficult, and food and supplies could not keep up. The Tang army was already war-weary, and after encountering these circumstances, the morale was even lowered.

Li Shimin saw it in his eyes and was anxious in his heart, so he could only continue to motivate the soldiers.

On this day, the Tang army and the Turkic army met in the northwest of Longzhou, and Jieli Khan quickly seized the favorable terrain and lined up to meet the battle.

The loss of favorable terrain made the officers and men of the Tang Army even more frightened.

Li Shimin knew very well in his heart that this battle was a vicious battle, and only by making concerted efforts could we win the victory.

Moreover, they can only win and not lose, otherwise the soldiers will be slumped, and it will be impossible to win in the future.

So, Li Shimin analyzed the current situation with Li Yuanji: "...... Now the situation is critical, if we can't hold Longzhou, then Qizhou will also not be able to hold it, and Chang'an will be in danger at that time.

"I hope Shiro will put aside your past grievances and join me in meeting the army of Jieli Khan."

Li Yuanji hooked the corners of his lips, and a sneer flashed on his face: "The Turkic Iron Cavalry is so powerful, how can you send troops hastily?"

"In the event of a defeat in the first battle and the morale of the army is weakened, how should we defend Chang'an?"

Hearing this, Li Shimin's heart sank, and sure enough, Li Yuanji was determined to oppose him.

At the moment of the great enemy, his brother wants to watch the excitement, instead of working together with him to fight the enemy, which is simply hateful.

Li Shimin was angry in his heart, but said quietly on his face: "Of course it's not a hasty dispatch, I already have a detailed plan. ”

"Heh......" Li Yuanji subconsciously wanted to deny Li Shimin, but stopped again.

He was thinking that although few of the generals his father sent to Li Shimin this time were Li Shimin's cronies, there were many people, and if he, as a deputy commander, blatantly opposed the commander-in-chief, his father would definitely blame him for the defeat of the war.

So, Li Yuanji smiled and said, "It seems that the second brother already has a good plan, why don't we discuss it." ”

Li Shimin saw that his attitude suddenly improved, and he was puzzled, but after thinking about it, he felt that Li Yuanji should have listened to him.

After all, if the Tang Dynasty was wiped out by the Turks, Li Yuanji, the king of Qi, would not be able to do it, let alone the position of the prince.

Thinking of this, Li Shimin was a little relieved and said to the generals: "We have just met the Turkic army and lost the favorable terrain, Jieli Khan will definitely think that our army is demoralized, and is trying to defend the Turkic army.

"He never imagined that I would do the opposite and attack right away.

"Listen up, you'll be ...... tonight."

After listening to Li Shimin's plan, Yin Kaishan immediately praised: "The marshal is a good plan, I am sure that he will be able to inflict a heavy blow on the Turks tonight." ”

Li Yuanji "hummed" in his heart, and praised on his face: "The second brother is really smart, this plan is very good, I will go and prepare." ”

"King, I'll prepare too." Yin Kaishan followed Li Yuanji out of the big tent.

The other generals retired one after another and began to prepare for tonight's surprise attack.

After Li Yuanji returned to his camp, according to Li Shimin's plan, he ordered Xie Shufang to reorganize the army.

Yu Wenbao cautiously tested: "Master, do you really want to do it according to King Qin's plan?" ”

"Of course not, I'll surprise him." A wicked smile crossed the corner of Li Yuanji's mouth.

Hearing this, Zhang Yin was very worried, so he tentatively advised: "Master, now that the enemy is present, the safety of Chang'an is also tied to the King of Qin and you, can you not come nonsense." ”

"Don't worry, I won't come nonsense." Li Yuanji made perfunctory assurances.

......

This night, sub-hour.

According to the plan, Li Shimin led a thousand cavalry to quietly approach the Turkic army.

Finish out the sentries first, then rush inside the enemy army and go on a killing spree.

"The Tang army is coming, the Tang army is coming......" The Turkic soldiers finally discovered the Tang army and immediately rushed to report the news.

Jieli Khan woke up in shock, and when he heard the news, he immediately ordered Tuli Little Khan to meet the Tang army.

Not long after the order was issued, Zhao Deyan ran over and said to Jieli Khan: "Khan, the person who attacked our army is Li Shimin, the king of Qin. ”

Jieli Khan was overjoyed, and immediately ordered his henchmen to lose their thinking: "You immediately lead troops to reinforce Tuli, and you must capture Li Shimin." ”

Lost his thinking and led the order.

After killing thousands of Turkic soldiers, Li Shimin accepted it and withdrew from the Turkic position.

However, Tuli soon led his troops to chase after him, entangled Li Shimin and his cavalry.

It didn't take long for Zhi Zhi Sili to lead the troops to chase after him and enter the battle.

Li Shimin roared angrily: "Hasn't King Qi's army come yet?" How long has it been, why hasn't it come yet? ”

While blocking the arrow for Li Shimin, Qin Shubao replied: "Maybe King Qi is delayed on the road." ”

But after saying that, Qin Shubao himself didn't believe in such a reason.

Li Shimin wanted to believe it, but after falling off the horse, Li Shimin was so angry that he slammed the ground: "Li Yuanji, when I go back, I will definitely kill you." ”

"Be careful, my lord."

A feather arrow shot at Li Shimin, and Luo Shixin flew over and grabbed the feather arrow with one hand.

Li Shimin escaped, temporarily put aside the matter of Li Yuanji not sending reinforcements, and concentrated on the enemy.

"Listen to my orders, and the whole army will retreat to the southeast."

However, it was becoming more and more difficult for the Don army to break through, and there was little hope in sight.

At that time, Li Yuanji sat firmly in the big tent, and a general advised Li Yuanji: "Deputy marshal, half an hour has passed since the reinforcement time set by the marshal, let's go to support." ”

Old God Li Yuanji picked up the teacup on the ground and took a sip: "You don't have to worry, I have already sent troops to support the marshal." ”

"Where? Why didn't I see it? Yin Kaishan lifted the curtain and walked in......