Although Zheng Zhilong had a deep concern about the opening of the sea by the imperial court, no matter how dissatisfied he was, he did not dare to sail the warship to Tianjin Wei like in Fujian.

The natural fear of imperial power made him even shirk the holy decree of His Majesty the Son of Heaven, and he never mentioned going north to Beijing in the name of his own health, but the Son of Heaven was not angry, and also gave medicinal materials and other things.

The Son of Heaven and the Five Tiger guerrilla generals both knew what was going on, but no one wanted to pierce this layer of window paper.

And for such a son of heaven, Zheng Zhilong didn't dare to be careless, the son of heaven who could put down the royal dignity was terrifying.

Of course, the most important thing is that after Zhao'an, the imperial court did not interfere with the Zheng family's sphere of influence in Zhangquan and Dayuan, and turned a blind eye to the pirates they were doing as usual and collecting protection fees for passing ships.

Zheng Zhilong is not a fool, since the imperial court has already surrendered to the peach, he can only repay Li, and he did not interfere much in the matter of opening the sea in Tianjin, and actively joined in to get a piece of the pie and organize a fleet to transport grain from Jiaozhi.

However, because of the obstruction of Zheng Zhilong in the south, after Tianjin Wei opened the sea, except for the ships of the Japanese Kingdom, they were basically merchants in the south of the Yangtze River, but none of the ships of Franky and the red-haired devils could enter.

There is no doubt that the Zheng family controls the front line of Fujian and Dayuan, and the foreigners can only take the goods from the Zheng family.

In this regard, Li Banghua also mentioned this matter in a separate book, of course, in the recital, Li Banghua said that Zheng Zhilong was a big pirate who violated the yang and the yin, but Zhu Youzhen only smiled.

The strength is not allowed, and it is useless to be angry, so if you have that effort, you should make more money and build a few more warships for Yu Zhigao.

Yu Zhigao, who wanted to make meritorious contributions to crimes, after arriving in Tianjin, he also ignored the affairs outside the window, and only wanted to build sea ships.

And for what the Zheng family in Fujian did, Yu Zhigao has a deeper experience, if Li Banghua is just scolding Zheng Zhilong, then Yu Zhigao is hatred for Zheng Zhilong.

It was because of Zheng Zhilong that Yu Zhigao not only failed and ruined his father's reputation, but also was imprisoned.

And after this case, Yu Zhigao also saw through the hypocrisy and bloodshed of the Ming Dynasty's civil official group.

The failure of the Battle of Tongshan was not his responsibility alone, in order to exonerate Zhu Yifeng, the former governor of Fujian, Yu Zhigao was left alone with all the charges.

After this catastrophe, Yu Zhigao naturally knew the reason why he could survive until now, so he was very concerned about the revitalization of the sailors assigned by the Son of Heaven, not only sent people to Jiangnan to recruit sailors, but even sent people to Haojing Ao many times to find shipbuilding and ship operators.

Now in the Tianjin Water Division, there are not only Ming people, but also many big and small Frankie and red-haired devils.

Yu Zhigao's principle is that as long as you have the ability, it doesn't matter what your background is, as long as you can build ships and operate ships, you will not hesitate to pay money.

Therefore, in two or three months, a team of 500 sailors with martial arts students as the backbone and sailors from the south of the Yangtze River as the basis was established.

However, Yu Zhigao is also aware of Huayi's distinction, although he knows that foreigner sailors do have the ability, but he only lets them serve as instructors, and foreigners are not allowed to be included in the list of regular sailors who are trained.

Although he had not yet built the kind of sail warship that the Son of Heaven said, Yu Zhigao did not let these sailors idle, and without warships, he dragged the artillery to civilian ships and sand boats for training.

After two months of hard training, the 500-person sailor team can be regarded as having some appearance.

For this reason, Zhu Youjian also went to a special Binhai Special Economic Zone in Tianjin in December, inspected the construction of the special zone and the construction of the naval division, and also watched a drill of the naval division.

Although the naval battles practiced on the sand boat and the Fu boat were a bit nondescript, it was only an artillery battle, and there were no more sailors for gang jumping, which still satisfied Zhu Youzhen.

If Yu Zhigao had asked the soldiers in the exercise to pick up and jump to the gang, Zhu Youzhen would have been able to cut Yu Zhigao on the spot.

Fortunately, the general direction of the development of the sailor is not wrong, and Zhu Youzhen feels that he has not chosen the wrong person.

However, for Xu Guangqi, the secretary of the Ministry of Industry, who accompanied him, Zhu Youzhen still reprimanded.

It's been two months, and the kind of sail battleship that Zhu Youzhen asked for still doesn't even have a hair, and the progress is a little slow.

Of course, Xu Guangqi also had his difficulties, and it was really not possible to build sail warships and Galen ships in the docks of the Ming Dynasty full of Fu ships and sand ships.

Zhu Youzhen also knows this, shipbuilding is not like a sailor, Daming lacks everything, that is, there is no shortage of people, and if you want to develop a new navy from scratch, soldiers are the key, but ships are even more critical.

Moreover, the ships of this era were all wood, and it took time just to transport and dry the wood to be distilled.

However, another reason why Zhu Youzhen was angry was also to put another burden on the Ministry of Industry, and the group of old officials in the Ministry of Industry were not going to go and regress, and he had long been unpleasant.

Therefore, after Xu Guangqi talked about some difficulties in the Ministry of Industry, Zhu Youzhen naturally set up a ship department under the Generalissimo's Mansion, directly abandoned the Ministry of Industry, and transferred craftsmen from Longjiang Shipyard, Wuhumen Shipyard and Dongguan Shipyard to build the framework of the ship department.

Moreover, in order to strengthen communication and coordination with foreign technicians, Zhu Youzhen also recruited Sun Yuanhua, a student of Xu Guangqi, to the Ship Department and ordered him to be responsible for the construction of new warships.

Regarding Sun Yuanhua, Zhu Youzhen has prejudices, although Xu Guangqi has also recommended himself as a student many times, but Zhu Youzhen has reservations.

After all, in the original history, it was because Sun Yuanhua was ineffective in his control of Denglai Governor that Kong Youde, the soldiers of the former Dongjiang Town, rebelled.

Moreover, Sun Yuanhua was ineffective in quelling the rebellion afterwards, not only the kindness of the woman, but also the bloodless entry of the rebels into Dengzhou City, which made the encirclement and suppression of the official army fall into passivity, and more importantly, a large number of artillery and craftsmen in Dengzhou City were also given to the rebels.

Later, the rebels crossed the sea and surrendered to the Manchus, and these advanced artillery and craftsmen who mastered the art of cannon casting were also brought to Liaodong.

In Zhu Youzhen's eyes, Sun Yuanhua is a technical official, and he is okay with making guns and cannons, but if he is allowed to manage the military and politics, it will be difficult to strengthen people outside of knowing people.

In Zhu Youzhen's era, the division of talents is very detailed, even in the enterprise, management personnel and technical personnel are separated, a technical master to bring the team to a messy example, Zhu Youzhen does not see too much.

Therefore, for Sun Yuanhua, Xu Guangqi also recommended him to be the governor of Denglai, but Zhu Youzhen directly retained him.

Zhu Youzhen knew that Sun Yuanhua was talented, but he just couldn't find a suitable position to arrange him, and the talent was not in the right position, which was even more terrible than mediocrity.

So Sun Yuanhua, who was not favored by the Son of Heaven, has been fishing in his hometown in Songjiang.