"Speed up, it's almost Shangluo!" At this time, Li Shimin didn't know that Hongnong Palace was about to be lost, and he was still rushing to Shangluo to support, of course, he had to support Shangluo, Shangluo County and Hongnong County are the two gates to Chang'an, one side is lost, and the other side has no need to defend it anymore, so he has to support Shangluo, there is no other way.

"Lord Wang, there is a mountain range ahead, the terrain is more complicated, and it is not far from Shangluo, I am afraid that there will be an enemy ambush!" Wei Chigong said when he came back from exploring the way ahead.

"Is the terrain dangerous?" Li Shimin asked, this is the road to Shangluo relatively close, if it is too dangerous, he does not dare to take this risk.

"It's not dangerous, but there's a narrow section of ground in the middle, with two low hills on either side." Wei Chigong said.

"Then there is no need to make a detour, pass the order, open the way in front of the cavalry, and quickly pass this section of the road!" Since the terrain is not dangerous, the possibility of the enemy ambushing is not high, Shangluo is not so easy to gnaw, the enemy army is only more than 100,000 people, if you want to capture Shangluo, you will not be able to free up troops to come to ambush, and how can the enemy be sure that they will take this road, not to mention that they have an enemy army at least 50,000 people in ambush to threaten them, otherwise they will directly break through.

"Marshal Qiyu, the enemy has come!" The scout came back to report to Li Jing, Li Jing did not choose to ambush here, and he was not familiar with the terrain here, but don't forget that Yang Jian has a team of people who specialize in intelligence news, Li Jing contacted Feihong, and the problem of terrain was naturally solved, of course, the premise of all this is that the strategies in front can be successful, otherwise the enemy will be in trouble if he directly moves Luoyang, but when he sees the enemy coming, Li Jing knows that the plan in front has taken effect.

"Order, spare the enemy's vanguard and attack the enemy's middle troops!" It is more difficult to ambush in this kind of undangerous and relatively open area, because the strike surface is not enough, and the enemy can quickly adjust the troops, but since Li Jing dares to choose to ambush here, there will definitely be a killer weapon, that is, earthen mines, since simple grenades can be made, not to mention mines, of course, the lethality is also limited and needs to be towed with ropes, but this is enough.

"Get through this section quickly!" Li Shimin continued to urge the troops, looking at the distance between the low hills on both sides of about fifty or sixty zhang, which was indeed not conducive to an ambush, but he still did not dare to take it lightly. Seeing the safe passage of the troops in front, Li Shimin breathed a sigh of relief in his heart, just when the follow-up troops were preparing to pass quickly, the situation suddenly changed.

The sound of "bang~bang~" suddenly exploded, although the sound was not loud, but the continuous sound was extremely harsh in the silent night, only to see groups of people falling, and the miserable shouts were endless!

"Retreat! Evacuate! Li Shimin was also stunned by this sudden change, but he reacted quickly and decisively ordered the troops to retreat, and just when the scene was extremely chaotic, the small hills on both sides suddenly became bright, and then I saw rockets volleying down in the sky!

"Stumbling on the horse, Mo swordsman stops the enemy's cavalry, you can lead people to cut off the enemy's back road, and the rest of the people take advantage of the enemy's chaos to kill!" Take advantage of your illness to kill you, and wait for a while if you don't kill at this time. Such a great opportunity, of course, cannot be missed.

"Lord Wang, what should I do? The enemy has blocked the road in front and behind! Liu Heimin said, the last time I ambushed the Turks, I killed it coolly, and now I know that it tastes bad when I am ambushed, especially when I can't advance or retreat.

"Break through that hill!" Li Shimin noticed that the rockets shot down from the hill on the left just now were relatively dense, and it was estimated that the enemy's commander was there, and now the enemy was rushing down to kill, so the defense around the boss was the weakest, he didn't expect to be able to kill the enemy boss, as long as he concentrated a force to threaten the enemy boss, then the enemy would inevitably go to the rescue, then there might be a gap in other places, and they would have a chance to break through!

"This Li Shimin really has some ability, he actually knows that Ben Shuai is here, so what if you let you escape, Hongnong is estimated to have been taken, see where you can run!" Li Jing saw Li Shimin leading people to rush to the hill where he was, so he knew Li Shimin's plan, as for how Li Shimin found out that he was on this side, it is unknown, maybe Li Shimin guessed randomly, seeing that he was surrounded by archers, it couldn't be stopped for long, Li Jing retreated decisively and summoned Wang Junke's troops to come to support.

"Lord Wang, the enemy army behind is rushing this way!" Liu Heimin has been paying attention to the movements of the Sui army around him, and although the night is dark, he still discovered the movements of the Sui army at a glance.

"You lead the people to retreat quickly, and this king covers! That's an order! Seeing that Liu Heimin was stunned and did not move, Li Shimin accentuated his tone, this hard-won opportunity must be raced against time, of course, there is a reason why Li Shimin will not say it, that is, Liu Heimin needs to open the way in front.

"It's finally out, lord, where should we go?" Liu Heimin successfully fought his way out, and Li Shimin also broke through.

"Since the enemy is waiting for us here, I'm afraid that Hongnong Palace has been lost, let's go to Tongguan! What about Jingde? Li Shimin suddenly found that Wei Chigong did not come out with the breakthrough.

"This king wants to go back to save Jingde!" Li Shimin said that he was about to turn back.

"Lord Wang, let your subordinates go down." Liu Heimin stopped Li Shimin, Li Shimin could still think about the trapped brothers, which made Liu Heimin very moved, but at the moment they broke through only more than 50,000 people, and everyone looked panicked, so it is estimated that there will be no return to go back to save people. At this moment, the sound of horses' hooves approached, "Defense! Liu Heimin shouted, he didn't expect the enemy to chase after him so quickly.

"Lord Wang, my subordinates~ subordinates are ashamed, and they can only bring out so many brothers!" It turned out that Wei Chigong broke through, but the 3,000 cavalry was less than 1,000.

"Get up and come back! Let's go! Li Shimin led less than 50,000 horses towards Tongguan in the north, Shangluo County and Hongnong County could no longer hold it, as long as Tongguan was still in their hands, the enemy army would not dare to attack Chang'an easily.

After dawn, Li Shimin also led the remnants of the defeated army into Tongguan, took over the defense of Tongguan, Tongguan is the east gate of Jingzhao County, at this time has not been affected by the war, Li Shimin stayed in it for a day, all the news of the unfavorable war came, Hongnong was attacked by the enemy army pretending to be his own soldiers, Feng Yijun had been broken through before this, Yan'an Shuofang and other counties were also defeated on the whole line, the entire ** front from north to south collapsed, and had to repeatedly shrink the defensive line, and the 500,000 army was beaten to no more than 300,000, It can be described as a loss of troops and territory.

Not long after Li Shimin arrived in Tongguan, Li Xiaogong also took the remnants to Tongguan, originally wanting to go south to find Li Shimin, but he did not expect Li Shimin to retreat to Tongguan in the new year.

"If Your Majesty used the people of the world to sit on the northern front, it would not be so badly defeated, but the 300,000 elites were chased and beaten by the enemy, not that the enemy was too strong, only to blame us for being inhuman!" Li Xiaogong had an indignant expression, as if all the consequences of all this were the fault of Li Yuan and Li Jiancheng, and his defeat in Feng Yijun was also a mistake in command from above.

"Okay, third brother, defeat is defeat, it's useless to find a reason, we are not completely without a chance now, the enemy is attacking in three ways, the north is the weakest, if you can defeat the enemy army in the north, there will be a chance." Li Shimin said that the Sui Army North Road was led by Qin Shubao, which was his old opponent, although he suffered a small loss last time, but Li Shimin attributed the reason to the head of the eldest grandson Wuji, and did not think how powerful Qin Shubao was.

"Difficult! There is still a chance before they are undefeated, but at this time, it is estimated that they have long been scared, and it is unknown whether they dare to take the initiative to attack. If...... Alas~" Li Xiaogong said and said that he would let Li Shimin command, but he also knew that it was unlikely.

"Lord Wang, there's news from Lord Liu!" Just as the two sighed, Wei Chigong walked in with a letter. Li Shimin opened the letter and saw that it read, "The prince has returned secretly!" A few words.

"The prince has returned to Chang'an? So who's in charge in the north?! Li Xiaogong was also shocked when he saw the news, at this critical juncture, the coach actually secretly returned to Chang'an, what did he want to do?

Just because Li Xiaogong doesn't understand doesn't mean that Li Shimin doesn't understand. "Third brother, you help me sit in Tongguan, under my banner, I want to go back to Chang'an!" Li Jiancheng's secret return to Chang'an made him smell the danger signal, maybe the secret trick he arranged in Chang'an needs to be used.

"Good! Don't worry, I'm here, you can go with peace of mind, I hope this is an opportunity for us to Datang! Li Xiaogong also heard Li Shimin's words, and couldn't help but sigh in his heart, in the current enemy but do not think of unity, internal struggle for power, this is an ominous omen, of course, there is still a glimmer of hope in his heart, if Li Shimin wins in this struggle for power, maybe there is still a chance.

Li Shimin did not stay long, and left Tongguan with more than a dozen horsemen, and went straight to Chang'an, at this time the situation in Chang'an also began to stir.