On the fourth day of the battle, seeing that there was no hope of turning the war situation around, Su Xiancheng was heartbroken. After much thought, he wrote another letter and sent it to Thang Long City to Li Tianzuo.
Your Majesty, it's time to run away. The old minister is incompetent. Since I can't hold on to Liangzhou for you, I can only die to repay the country's kindness.
Once Lang Son is lost, you must not stay in Thang Long City, you must not engage in high-rolling gambling, and you must retreat south to a place with difficult terrain.
At the same time, be sure to be careful of the new Ming Dynasty firearms.
After sending the letter, Su Xiancheng collected it and prepared to go to the battlefield in person to direct the battle. However, it rained on the fifth day and the Ming army stopped attacking.
After Su Xiancheng was stunned for a short time, he was overjoyed and immediately realized that it was because the rainy weather threatened the Ming army's gunpowder and made them afraid to fight, so this was the South Vietnamese army's only chance!
We must take advantage of the rainy day to fight back, take advantage of the rainy day to regain the lost commanding heights, and take advantage of the rainy day to reverse the decline of the battle in one fell swoop!
So Su Xiancheng gave an order, and a considerable part of the South Vietnamese troops stationed in Lang Son area switched from defense to offense and began to launch a powerful offensive towards the Ming army garrison points, trying to reverse the situation.
This is the third misjudgment made by Su Xiancheng.
He mistakenly believed that the strength of the Ming army was mainly due to firearms. He believed that a large part of the Ming army's combat effectiveness was brought by firearms. Without firearms, the Ming army was no big deal.
But the fact is that the Ming army was just as powerful without firearms.
The South Vietnamese army turned to the offensive, and the Ming army followed the trend and turned to the defensive, switching directly from the offensive side to the defensive side. Holding the commanding heights, they began to engage in defensive operations. Facing the swarming South Vietnamese army, they used bows, arrows, and rolling logs. The stone crushing caused huge damage to them.
The South Vietnamese army's attack was blocked, but Su Xiancheng was unwilling to give up this precious opportunity to counterattack and forced the army to invest more troops in launching a strong attack on the Ming army.
The South Vietnamese army was forced to invest a large number of troops into the storming phase, and launched a difficult upward attack against a hail of arrows, rolling logs and rocks. At this time Zhang Si
The Ming army just stood firm and did not take the initiative to attack at first. However, when the South Vietnamese army was exhausted and retreated, the Ming army took the initiative.
Condescending and unstoppable, this advantage was taken advantage of by the Ming army. They defeated the besieging South Vietnamese army with counterattacks on several stronghold battlefields. A wave of counterattack pushed them to a very dangerous position for the South Vietnamese army. .
Su Xiancheng was dumbfounded.
What does it mean to steal the chicken but end up eating the rice?
This is probably it.
They fought back and forth, but failed to recapture a mountain. Instead, they lost troops, destroyed the morale of the army and the physical strength of the soldiers, and consumed a lot of military supplies, but there was no result, and they were even beaten by the Ming army. Fight back.
Su Xiancheng and the South Vietnamese officers are now really aware of a problem that they were not aware of before.
The Ming army was strong in all aspects.
The rain stopped from the morning of the fifth day to the evening. On the morning of the sixth day, the sun shone brightly, and the Ming army was ready to go. They took out gunpowder and match ropes and launched a new round of offensive. strong sacrifice reading sacrifice
By the seventh day of the battle, two-thirds of the military strongholds in the entire northern mountainous area of Lang Son were occupied by the Ming army. The South Vietnamese army became increasingly afraid to resist and had less and less will to fight. The death-defying charge could no longer be seen.
Afraid of being beaten.
Su Xiancheng did not give up and tried to take a detour and sneak attack on the rear of the Ming army, and even sent troops to attack Dananguan, but the results were not good.
The Ming army seemed to have expected it and made corresponding arrangements. The South Vietnamese army that attacked Dananguan was completely wiped out, and Su Xiancheng's last ditch effort was ineffective.
When the combat situation in the mountainous area north of Lang Son deteriorated comprehensively, and some South Vietnamese soldiers even began to desert and escape, some of his subordinates persuaded Su Xiancheng to run while he still could. If he didn't run, it would be too late.
The failure of this war is already a certainty, and South Vietnam has no way to counter the Ming army's attack.
Su Xiancheng sighed, feeling very painful about this.
Faced with the kind words of his subordinates, Su Xiancheng did not agree.
He wasn't going to run away, he was going to stay and fight until the end.
"Your Majesty trusted me, entrusted me with the army and important defense areas, promised me important powers, and put the country in my hands. This is something I should do and a responsibility I should bear, but I did not Didn't succeed.
I betrayed His Majesty's trust, lost important defense areas, and caused heavy losses to the army. Facing such a failure, how could I have the dignity to return to Thang Long City and escape with them? There is only one death. "
He rejected his subordinates' suggestion to take him somewhere else to avoid the limelight, and prepared to continue fighting to the death.
But on the eighth day of the battle, the entire mountainous defense line had been destroyed by the Ming army. They completely lost their ability to stop the Ming army. Su Xiancheng's own garrison points were already exposed to the Ming army's artillery attacks.
The South Vietnamese army collapsed and a large number of soldiers fled. Su Xiancheng's order was completely meaningless.
During the Ming army's artillery attack, his subordinates suggested for the last time that they lead Su Xiancheng out of the encirclement. Su Xiancheng refused and decided to dismiss his subordinates and allow them to escape on their own. He decided to lead the remaining soldiers to make a final resistance.
After the Ming army almost destroyed the military facilities with artillery, they sent infantry to start the siege. Su Xiancheng led the last few dozen soldiers who were unwilling to leave to launch the final battle. They were all killed by the Ming army musketeers and died on the way to the charge.
The Ming army successfully conquered the last hilltop and successfully controlled the entire Lang Son mountainous area. Then Zhao Yucheng sent out cavalry to pursue the fleeing South Vietnamese soldiers and successfully intercepted a considerable number of South Vietnamese soldiers who fled south as prisoners.
Subsequently, Zhao Yucheng sent troops to attack the entire Langzhou and captured the entire Langzhou. The entire military operation ended successfully in early March of the ninth year of Hongwu.
The Ming army used 35,000 troops to defeat more than 60,000 South Vietnamese troops in Langzhou. They killed about 13,000 people and captured more than 40,000 people. The total number of South Vietnamese soldiers who escaped was only a few thousand. It can be described as a very tragic military defeat.
While Zhao Yucheng reported the good news to Su Yonglin, he prepared his army and prepared to lead his army south to attack Thang Long City.
After witnessing the "powerful combat effectiveness" of the South Vietnamese army, Zhao Yucheng established full military confidence. He believed that even if they were given time to mobilize their troops for defense, they would still fall apart under the Ming army's offensive.
The road to Thang Long City is smooth, and South Vietnam will definitely lose. Zhi Da Zhi Xiao
Su Yonglin, who was in Huizhou, quickly received a military briefing from Zhao Yucheng. He learned that the Battle of Lang Son took nine days to end. He was very satisfied and had further confidence in Zhao Yucheng's military capabilities. Then he learned that Zhao Yucheng had Yucheng has led his army south to attack Thang Long City.
Su Yonglin thought for a moment and decided to send someone to quickly pass the order to Zhao Yucheng, asking Zhao Yucheng to surround Shenglong City, but not to attack by force.
