Now is February of the ninth year of Hongwu.

The winter in Lingnan has passed, and the summer in Lingnan has arrived early.

In this land where the season is not very obvious and sometimes it is even so fast that you can't control it, summer comes at any time, making people feel unprepared.

Zhao Yucheng and his soldiers basically have no living experience in Lingnan, otherwise they should have realized that the manual for going south should be activated at this time.

Zhao Yuchenglai did not receive any reports of soldiers contracting diseases. He suddenly learned that he was very surprised. While quickly sending the infected soldiers to the medical barracks for treatment, he quickly investigated the cause.

In the end, it was discovered that some of the troops were lazy.

Because of lack of understanding of the local climate, there was no good preparation when the temperature rebounded in February, the order of smoked ammunition was not strictly implemented, and the manual was not strictly followed when choosing a garrison camp, so that malaria infection caused by mosquito bites appeared.

Fortunately, there were not many, more than a dozen soldiers.

Zhao Yucheng urgently ordered the entire army to smoke the mugwort, and then moved some military camps close to the stagnant pools and jungles. Then he held a meeting to seriously criticize some military and political cadres and hold them accountable.

As the main person in charge, Zhao Yucheng also asked Su Yonglin for punishment.

After understanding the cause and effect of the matter, Su Yonglin was very unhappy.

"Before I went to the battle, I gave many instructions, why did this happen? Along the way, we have lost more than 500 soldiers due to malaria and heat. Do we need to continue to increase? In the smallest terms, this is called slackness, and in the bigotry, this is to take human life aside!"

Seeing that Su Yonglin was unhappy, Liao Xingye hurriedly helped Zhao Yucheng explain.

"Commander Zhao and cadres at all levels are probably working diligently, this time..."

"Will this problem occur when working diligently?"

Su Yonglin interrupted him and shook his head and said, "No matter what, this is caused by management negligence, and it is not a problem for the military rules. The situation that occurred before was helpless. They all strictly followed the military rules, but still couldn't escape. That was not a problem for people, but this time, can you say it's not a problem for people?"

Liao Xingye had nothing to say.

After thinking about it, Su Yonglin decided to deal with this matter seriously, hold the directly responsible officers and political cadres accountable, and then inform the entire army of criticism, requiring the entire army to do a good job of protective work during the period of temperature rise.

Don’t be afraid of spending money. Mugwort is not worth much money! Planting it again after it is gone. The Ming Dynasty has a special national medicinal material cultivation base. It grows very quickly and it won’t take long!

But what about people?

It's gone.

It takes at least twenty years to go from a young child to a qualified soldier! How much mugwort is enough to plant?

Although the southward battle costs a lot of money for logistics support, as long as the money is spent in place and the army's casualties can be reduced, it will definitely be a huge profit.

The same is true.

The military medical system built by Su Yonglin worked well, greatly reducing the mortality rate of soldiers in the Ming army's conquest. Compared with the terrifying loss rate of 30 to 40% of the northern army in the south of Lingnan in previous dynasties, the Ming army was simply comparable to the local army in Lingnan.

Therefore, the opponents in Guangdong and Guangxi were unable to resist and were quickly eliminated by the Ming army, so the battle did not become a protracted war.

The current situation of the Ming army in Lingnan cannot support a protracted war. It is best to be able to fight quickly and decide quickly. A quick battle is also an important prerequisite for the Ming army to win and gain a foothold in the local area.

This is true for Lingnan and Nanyue.

After the relevant orders and accountability were conveyed, Su Yonglin ordered Zhao Yucheng to prepare for military mobilization and prepare for war.

Since the Li Dynasty has expressed a clear and tough attitude, it means that this battle cannot be fought. If the battle is not started, they will definitely be able to reach Lingnan, which will have a great impact on the Lingnan construction strategy of Ming Dynasty.

However, because he was worried about the safety and hygiene of the army, Su Yonglin ordered local doctors who were good at treating heat and miasma from all over the country to go to the Dananguan army to protect the army.

Su Yonglin himself did not leave Huizhou. He still wanted to continue to lead the peasants to launch a campaign and personally make a revolution in Lingnan. He was confident in Zhao Yucheng on military issues.

Although the South Vietnamese army has combat effectiveness, how much of this combat effectiveness is based on the premise that elites of high-latitude dynasties are not used to combating in low-latitude areas, and it is not certain.

This time, Zhao Yucheng can do an experiment, so that the elite Ming army with combat power at least 90% of the peak state will fight with the local "elites" in Nanyue to see who can fight better, and see what this small area uses as the confidence to fight the Central Dynasty.

After Zhao Yucheng received a series of orders from Su Yonglin and a disposal notice, he summoned all officers and instructors to inform them of Su Yonglin's decision, and repeatedly asked them to be cautious in their military regulations and laws. No matter where they fight, they must strictly follow the contents of the southward combat manual.

The officers who were scared and sweated and were still scared, the instructors nodded repeatedly and said that they would never slacken any more.

Then Zhao Yucheng began to announce the combat order this time.

Zhao Yu became the commander-in-chief of the entire army, leading an army of 35,000 people from the 19th Army of the Seventh Corps and the Second Battalion of the Shenji, attacking the South Vietnamese army in the Lang Son region, trying to eat them all in one breath, giving the rulers of the Lee Dynasty a fierce shock.

At the same time, Chameng will also launch an offensive in the border areas to support their actions as a restraint.

Since Zhao Yucheng garrisoned, he has made a full understanding of the terrain of Lang Son and the garrison situation.

To the north of Lang Son is the northern plain of Tsing Long City with undulating mountains and dense jungles. To the south of Lang Son is the northern plain of Tsing Long City with rice fields and dense water networks.

If you want to use troops in North Vietnam, Lang Son is the key place. If you keep it, you can block the mountains in North Vietnam in the future. Take it down. To the south, there will be a flat horse. The army can directly take Shenglong City.

Since ancient times, the Central Plains dynasty has used troops to Jiaozhi, and Lang San is a must-pass place. After Lang San defeated the enemy and occupied Lang San, he could basically send an edict to resolve the war.

If the South Vietnamese army is good at fighting and persevering enough, as long as they defend Lang Son, they will have no good idea in the Central Plains dynasty, so they can only find another way to attack the South Vietnamese land.

Therefore, Lang Son's danger is evident.

The most important goal of this southward battle is to take down Lang Son, occupy Lang Son, control this crucial point in the hands of the Ming army, and completely lose this natural line of defense in the South Vietnamese Li Dynasty regime.

It can be said that the Lang Son area is not suitable for cavalry combat, so the cavalry of the Ming army had to be abandoned.

Of course, the Ming army went south all the way, and did not use much cavalry, mainly infantry, so it doesn't matter.

Next is that this terrain is obviously not suitable for the use of the powerful siege weapon General cannons, and can only use the lighter chariot general cannons to fight.

It is not easy to transport chariots, cavalry, generals and cannons.

However, in order to adapt to the battlefields in Jiangnan, especially Lingnan, Su Yonglin ordered the Ministry of Industry's R&D department to develop vehicles specially used to transport artillery based on the actual needs of the firearms troops.

Its wheels are wide and thick, with a higher terrain, and can drive on less flat terrain, and can transport relatively lightweight cyclists and generals.

Of course, don't think about the general's cannon.

The weight of the general's cannon has greatly restricted its place of play. The chariot and cavalry general's cannon is the main war artillery of the Ming army. The firearm research department is also studying how to enhance the power of the chariot and cavalry general's cannon.

Although the progress is limited at present.
Chapter completed!