He did this for two reasons: first, to quell his long-standing anger towards the Kazeshima Kingdom.

Secondly, eliminating the Eastern Island nation could serve as a deterrent to other countries.

Therefore, Zhu Yunwen possessed a confident and fearless aura, which made him a formidable figure.

Princess Dongdao was afraid, and she no longer dared to have any major conflicts with the Ming Dynasty.

I wouldn't dare, at least not now.

Therefore, she had to take Zhu Yunwen's words seriously and with great care.

You must also avoid actually angering Zhu Yunwen.

Zhu Yunwen left Dongdao Island and appeared on the Dongdao Island beach the next day.

The five hundred special forces soldiers, aboard fifty warships, all breathed a sigh of relief upon seeing Zhu Yunwen's safe return.

They were not afraid of war, but they were also worried that Zhu Yunwen would suffer losses in the Eastern Island Kingdom.

Therefore, during this period, they were all on high alert. They were ready to pounce on any news they received, especially if they learned that Zhu Yunwen had suffered any losses or injuries in the Eastern Island Kingdom.

Then they would bring fifty cannons and raze the entire East Island Royal Palace to the ground.

This is not just empty talk; they are now fully convinced that they have the ability to do it.

Thus, after Zhu Yunwen boarded the ship, he left the waters of the Eastern Island Kingdom with Zhao Qingzhu, ten Imperial Guards, and five hundred special forces soldiers, and returned to the Ming Dynasty.

After landing, Zhu Yunwen ordered 500 special forces soldiers to remain in Blackwater City.

Furthermore, fifty cannons were left in the coastal area, under the control of the five hundred special forces soldiers.

Fifty light cannons are very powerful weapons, and Zhu Yunwen would not feel at ease entrusting them to people he did not trust.

Those five hundred special forces soldiers were rigorously trained by Zhu Yunwen, and they were absolutely loyal to him. Therefore, Zhu Yunwen felt relatively at ease entrusting such weapons to these five hundred special forces soldiers.

These 500 special forces soldiers, along with 50 artillery pieces, were stationed along the coast to guard against potential future appearances of Japanese pirates.

This also serves as a deterrent to the island nation.

Although Zhu Yunwen hoped that the Eastern Island Kingdom would continue to court disaster so that he could wipe it out in one fell swoop, he also needed to ensure that he had absolute strength to deal with any possible actions by the Eastern Island Kingdom in the coastal areas.

As for Zhu Yunwen himself, he led Zhao Qingzhu and ten Imperial Guards towards Nanjing.

He has been away for so long this time, and what he has done has almost achieved his goal.

He didn't need to worry too much about things in the coastal areas, because with a certain amount of military deterrence, he believed that the coastal areas would return to peace, and no one would be recklessly causing trouble.

Because all the roads in the Ming Dynasty had been paved with cement, it only took Zhu Yunwen two or three days to travel from the coastal city of Heishui to Nanjing.

The carriage traveled along the wide, flat cement road, making the journey very comfortable.

Upon returning to Nanjing, Zhu Yuanzhang immediately met with Zhu Yunwen.

Zhu Yuanzhang was genuinely happy, even though the exoneration of Zhu Yunwen in the southwest region indirectly proved that Zhu Yunwen had a certain ability to lead troops into battle.

But this only proves that Zhu Yunwen has the ability in this area. However, now Zhu Yunwen has only trained five hundred soldiers and improved the cannons. He was able to use these five hundred special forces soldiers and fifty cannons to shock the Eastern Island Country to such an extent.

They also eliminated several times more Japanese pirates, and none of their own men were injured or killed, creating the greatest military deterrence at a minimal cost.

This fully demonstrates Zhu Yunwen's unparalleled ability in military affairs.

Even Zhu Yuanzhang had to admire this.

He admitted that if he were asked to train five hundred soldiers or improve cannons, he would never be able to reach that level.

They also absolutely lacked the courage to travel to the Eastern Island alone.

Moreover, they lacked confidence that they could escape unscathed.

Yet, Zhu Yunwen accomplished all of this, and not only did he accomplish it, he did it exceptionally well.

The Eastern Island Nation doesn't dare to do anything to him yet.

So, in the imperial study, Zhu Yuanzhang looked at Zhu Yunwen and said:

"Our great grandson is exceptionally brave. This time, he has truly brought honor to our Ming Dynasty."

Indeed, if everything Zhu Yunwen had previously displayed was merely a display of high spirits and outstanding performance within the Ming Dynasty...

This time, it can be said that the iron fist was demonstrated between nations, leaving Zhu Yuanzhang no choice but to admit defeat.

In response to Zhu Yuanzhang's lavish praise, Zhu Yunwen simply smiled and said:

"These things were bound to happen sooner or later, and as for the policy towards the Eastern Island Nation, it was only temporary. The Eastern Island Nation's ambitions will never disappear in the slightest."

They will definitely try every means to study the five hundred special forces soldiers I trained, and also our light artillery. Once they figure out the secrets, or even make a slight breakthrough...

I believe they will continue to reveal the evil seeds hidden in their hearts.

Zhu Yuanzhang paused for a moment, then said to Zhu Yunwen:

"Then what does the Crown Prince think we should do with this Eastern Island nation? Or, while our national strength is still great, why don't we just eliminate this enemy that may pose a huge threat to us?"

Zhu Yunwen nodded and said:

"I had the same idea, so next, I will ask my grandfather for permission to train a larger special forces unit."

I also ordered the Ministry of Revenue and the Ministry of Works to cooperate and continue to produce light cannons according to my instructions.

"By then, with more special forces and light artillery, we can easily wipe out the Eastern Island nation."

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