Zhao Hao wore the new summer uniform of the Coast Guard and a white flat-topped wide-brimmed hat with a gold-threaded hatband around the wall and gold tassels embroidered on the brim. The cap badge changed from a simple golden anchor to a more complex one with a golden anchor in the center, the sun and the moon above, and seven stars surrounding it.

On the large lapel of the light blue cotton-linen jacket, there was a golden anchor on each side, and no other decoration. He wore ironed dark blue trousers and black leather boots. He also wore white gloves, held the golden baton of the chief police inspector, and hung a golden dagger on the leather belt around his waist, which was really full of ceremonial sense.

As the commander-in-chief of the Coast Guard, he stood proudly at Haiyun Pass, with towering mountains on one side and the blue waves of the Ming South China Sea on the other.

Indochina Peninsula is warm and humid in March, with mist lingering in the mountains, green all over the mountains, and colorful mountain flowers dotted in between. The sea surface also changes charming light and shadow as the clouds roll and unfold, it is really like a fairyland!

This magnificent landscape was lying at his feet!

But in the eyes of Zhao Hao and his staff, this has a different meaning——

Haiyunling is less than 50 kilometers long from west to east, which happens to be the narrowest part of Annan's territory in later generations. It is also the most fatal point of the country! And it is the kind of place that makes people unable to resist attacking.

~~

Mr. Zhao Liben, who is nearly 90 years old, spent the winter in Sanya City last year. When Zhao Hao came to Haiyun Pass this time, he also insisted on coming with him for a visit.

Of course, he was carried up the mountain on a stretcher, so he was full of energy, his legs and feet were nimble, and he was in high spirits, visiting everywhere in Haiyun Pass.

This fortress is built with giant rocks and is extremely solid. There is a plaque in front of the fortress engraved with three large characters "Haiyun Pass", and on the back door there are six large characters "The No. 1 Pass in the World", all of which are naturally Chinese characters.

"The Annan monkey is really shameless. He dares to call this shabby tower the most powerful pass in the world? Is it worthy of it? How many times do you deserve it?" The old man looked disdainful.

The person who was supporting him was Zhao Shouye, who had retired early and returned home to serve his father. Hearing this, he smiled bitterly and said, "Dad, please be more polite. You will lose if you get angry with a bunch of arrogant people."

"I get angry just looking at them! What a bunch of shameless monkeys!" Zhao Liben spat fiercely, raised his cane and pointed at the Annan territory in the north and said: "Let's shoot them all!"

"Now it is the Annan Military Commission of the Ming Dynasty and the territory of the Celestial Empire." Zhao Shouye reminded with a smile.

"Hmph, it's useless! Those monkeys are fickle and will raise the flag of rebellion when they get the chance. The reason they are submitting now is just a stopgap measure because of the civil war and they are afraid that the heavenly soldiers will take the opportunity to march south." Zhao Liben was very disgusted with Annan because, strictly speaking, it was lost by his ancestors.

Although the "great gift" did not mean giving away this little territory, at least everything else returned to the Celestial Empire. Only Annan was taken back by Emperor Yongle, but was abandoned by the eternal sinner Zhu Zhanji. Although it was now forced to submit to the Celestial Empire again, it was only a nominal affiliation. They closed the door and claimed to be alone, and did not take the Celestial Emperor seriously at all.

How can one not feel upset?

"Grandpa, how about we build a separation wall here?" Zhao Hao walked down from the city wall and said loudly to Zhao Liben.

"Separation wall?" Zhao Liben was stunned.

"Yes." Zhao Hao smiled and gestured, "I just took a quick look and the project is not too large. Haiyun Peak is steep and only this passage is barely passable. So we only need to build a wall as high as the surrounding mountains at the location of Haiyun Pass, and the Annan people will be left with nothing."

"My goodness, how much does that cost?" Zhao Shouye took a breath. Although he no longer does auditing, he cannot get rid of his occupational disease for the time being.

"It's about 20 meters high, 10 meters wide at the bottom, and 5,000 meters long. It's the same as the materials and materials for building two dams. It won't cost much." Zhao Hao said with a confident smile, as if no one knows more about building walls than him. "Besides, Champa has already paid for it, so we don't need to spend any money."

"Yes!" Champa Wang Poa poked her head out from behind Zhao Hao and said with a big smile on her face, "This is to build a safety wall for us. How can we let the group spend more money?"

Fifteen years ago, when the long-distance fleet first arrived in Champa, Poa could not understand a word of Chinese, but now he can flatter fluently in Nanjing Mandarin.

Of course, he took the initiative to pay for it not just to curry favor with his superiors, but because Champa really needed the wall.

The history of the past few hundred years has repeatedly proved that the Cham people who believed in Brahmanism could not defeat the Annan people. Although they drove back the invading Annan people with the support of the Celestial Coast Guard, they also paid a heavy price.

Including the previous defensive phase, this war of recovery lasted for a full fifteen years, and a full 100,000 Occupies were killed.

There was no way to deal with such high casualties. Besides the fact that the soldiers were too weak to become qualified fighters no matter how much they were trained, the bad weather, the desperate rainforest and the complex mountain terrain also greatly weakened their advantage in weapons.

Not only could they not line up to be shot, but artillery could not enter the rain forest, and even the range advantage of muskets was meaningless. Experienced Annan soldiers hid in the U.S. military's happy forest, and the effect was the same when they shot when the occupying army soldiers approached. In many cases, it was even more effective to use a crossbow, a javelin, or a machete...

The war had already cost the Cham a whole generation of men, and the male-female ratio had reached a terrifying 70:30. If the war continued, the Cham would be wiped out.

Therefore, the Zhan people never crossed the Haiyun Pass and had no intention of continuing the Northern Expedition. They just wanted to live a peaceful life behind closed doors.

Therefore, when Po'a heard Zhao Hao mention building a wall, she immediately became excited. Worried that the big boss was just talking casually, it would be troublesome if the plan failed, Po'a took the initiative to propose that Champa pay for it, which was much more reasonable than the Mexican president.

How could Zhao Hao just say that casually? Building a wall on Haiyun Ridge to cut North and South Vietnam in half was high on his wish list.

Due to the restrictions of the terrain and a large country in the north, Annan can only continue to develop southwards, eventually forming a long dumbbell-shaped territory. Its population and economy are concentrated in the Red River Plain in the north and the Mekong Delta in the south. The distance between the two places is more than 2,000 miles, and they are only connected by a narrow strip of land at the foot of the Truong Son Mountains.

The Haiyun Ridge was like a natural wall, dividing the Annan territory in two. Merchants and armies traveling from the south to the north could only cross the mountains and pass through the Haiyun Pass, which made the north and the south almost disconnected, and even the races were different.

If even this tenuous connection could be completely severed, so that the north and the south were forever separated, the two parts would certainly become two complete countries!

This can greatly promote regional peace. There is no need to elaborate on the various benefits. In a nutshell, it can be summed up in one word - build a wall!

At the foot of the mountain on the south side of Hai Van Pass is the famous Da Nang. It is backed by the Marble Mountains, with Hai Van Ridge and Son Tra Peninsula as barriers in the northwest and northeast respectively. It is an excellent sheltered harbor with wide and deep waters.

The Champa Marine Police Department has set up a Da Nang Police Station and will station a new second squadron here. This powerful squadron, consisting of two destroyers, four frigates, and twelve flying fish-style galleys, will work with the speedboat brigade of the Da Nang Police Station to build a great wall on the sea and completely cut off the connection between the north and the south.

~~

"My dear grandson, you are really cruel. Will Champa and Annan never have any contact with each other again?" After the Champa queen left, Zhao Liben said to Zhao Hao, "How deep is the hatred and resentment?"

"This is the hatred towards the ungrateful wolves that transcends time and space!" Zhao Hao looked towards the north. If it was a cloudless day, it was said that one could see the city of Hue from here - that was Nguyen Hoang's old nest, the future capital of Annan for three dynasties, and the royal palace and the Hall of Supreme Harmony were built there with great fanfare.

But as long as I am here, there is no need to even think about it.

Zhao Liben naturally had no idea about the hatred that Zhao Hao felt four hundred years later. He thought that he was just like himself, feeling sorry for his ancestors.

"Ah, you kid." He couldn't help but shake his head and sigh, "You mobilized so many troops and went through so much trouble, just to vent your anger?"

"Of course not." Zhao Hao shook his head and said, "The 'Eternal Sinner Zhu Zhanji' has been arranged at the Luzon Shipyard. When it is launched, it will be the day to rebuild Annan!"

Now the Annan Northern and Southern Dynasties have been in confrontation for a full fifty years, and the situation has changed again. The Northern Dynasty's "Monkey Kong Ming" Mo Jingdian has passed away in the eighth year of Wanli, and only a bunch of rubbish are left in the court.

The "Monkey Zhou Yu" of the Southern Dynasty was in his prime, entering his best years. The Southern Dynasty should have prospered under his leadership, turning defense into offense, killing the chickens and dogs of the Northern Dynasty as easily as cutting melons and vegetables, and seizing the entire Red River Plain.

However, because of Zhao Hao's intervention, everything is different.

Although he did not send the coast guard to directly intervene in the Annan civil war, with the unprecedented strength of the Jiangnan Group, he could bring a country to the brink of collapse without using military means, relying only on economic means.

That was the "porcelain war" plan he arranged for the Nanhai Group during the Longqing period. It was to open kilns in Foshan and Chaozhou to produce a large number of export porcelains, and then dump them on the international market at low prices, driving Annan blue and white porcelain out of the international market.

Because of the Ming Dynasty's maritime ban policy, Annan blue and white porcelain became the main force in the porcelain trade between the two oceans. In the past fifty years, the Northern and Southern Dynasties have made every effort to increase the production of blue and white porcelain to pay for the high military expenses and purchase Western firearms.

The entire territory of Annan does not produce blue pigment, and it is necessary to import blue and white pigment from Yunnan or Persia in order to open kilns and fire blue and white porcelain.

The Jiangnan Group had already monopolized the trade routes between the East and the West, and was even more powerful in China. So when Zhao Hao ordered a ban on the blue material, the porcelain industry of the two dynasties was immediately strangled.

Although they could obtain some green materials through the smuggling channels of Sanxuan Liuwei, the output would inevitably plummet and the cost would increase!

At this time, the "Clark Porcelain" of Nanhai Porcelain came on the scene! This kind of porcelain is not only of high quality and low price, but also can be customized in pattern and shape according to customer needs. Once it was launched, it was very popular among buyers.

Under Zhao Hao's two-pronged attack, the market share of Annan blue and white porcelain, which had been a best-seller for two hundred years, plummeted.

In less than two or three years, it disappeared from the international trade market!