Zhang San's previous attitude towards this matter was not allowed, Zhang San always firmly believed in a truth, non-my race must have different hearts, and we must strictly guard against it, so as to prevent these foreign races from becoming big and endangering the survival of the Han people.

However, the situation has indeed changed now, one is that the number of Han people under Zhang San's rule has expanded sharply, occupying an absolute dominant number, and some slaves have received Sinicization education in the past four years of clearing and arresting slaves.

In this way, the slave can appropriately relax the policy for some excellent performance, after all, if he is a slave for a day and a slave for life, then the slave may lose the pursuit of life, and these people will have no motivation to work without the pursuit.

Therefore, when Zhang San was founded, he deliberately pardoned the slave status of 1,000 people who learned the best Chinese, and imposed a legal limit on the working years of slaves, as long as they passed the Chinese language test and worked for the Ryukyus for ten years, slaves could apply for civilian status.

As a result, the restrictions on some slaves were also relaxed, so there was now demand in various mines, such as the rough smelting of pig iron in iron mines, and some work in copper mines to discharge materials into furnaces.

This time Zhang is to see the shortage of labor in the copper mine, and then make a final decision, Zhang San is most afraid that once this opening is opened and then can not be stopped, gradually the Han people began to become lazy, the technology was mastered by these people, and finally the Han people were overthrown.

So this time the copper mine in central Luzon will be used as an experimental site to make some attempts, Zhang San certainly didn't have time to think carefully with everyone here, just listened to everyone's research report, and then watched it on the spot.

After research, in order to prevent slaves from learning smelting techniques, the working slaves were grouped into groups, and each group only did one process step, and carried out an assembly line division of labor, so that as long as they were not allowed to communicate, it would be difficult for them to learn the complete smelting process.

And everyone felt that even if they learned it, it would not have much impact on Ryukyu, just like the techniques of iron and copper smelting were not unique to Ryukyu, so if these slaves wanted to learn, even if Ryukyu didn't call them, they could learn it from other places.

Therefore, under the limited defense, everyone is more inclined to use more slaves, so as to liberate the population, in order to speed up the production efficiency, Zhang San looked around and saw that their defense facilities had been perfected, and all kinds of details were also taken into account, so he nodded and agreed with the plan of the mine.

Just in case, Zhang San limited the copper mines in central Luzon to only do copper mining and preliminary smelting, and all the deep processing was carried out in the Ryukyus, and the slaves involved were managed more accurately, and once they entered the copper mines, they would not want to go out unless they died.

That night, Zhang San took a boat south overnight, and Zhang San's boat would meet at Zhenpo Port in the northeast of Borneo, after all, if Zhang San returned to Luzon Port from the copper mine, it would be equivalent to going back.

When he arrived at Zhenpo Port, Zhang San met with the Borneo Clearance Headquarters and began to listen to the latest developments in the situation in Borneo.

Since the landing in the Ryukyus, the aborigines of Borneo have been cleared and driven and captured, and the frequency of activities has been reduced during the mid-war against the Song Dynasty, but after the end of the war against the Song Dynasty, there was a sudden intensification, and many of the natives began to move westward.

In the face of the high pressure of the Ryukyus and the influx of a large number of people, the population of these two countries swelled rapidly, and both countries successively organized an indigenous army of 40,000 or 50,000 people in an attempt to fight against the Ryukyu Qing team.

Originally, the clearance team was operating in one area as a battalion, but in the face of the indigenous army, in order to prevent being surrounded and sneak attacked, everyone immediately shrank the defensive line and prepared to concentrate their forces to complete the battle.

It's just that after the plan was reported to the General Staff Department, it was suppressed by the General Staff Headquarters, and Zhang San was ready to use these tens of thousands of natives to train soldiers to test the effect of the new tactics, so recently, the Ryukyu Clearance Headquarters established a defense line on the border between the two countries on the one hand, and sent ships to cut off their escape routes.

In order to prevent the other side from escaping and to test the design effect of the gunboats, Zhang San decided to launch a beheading operation against the northern country after a day of repair, and take the opposite royal city in a battle.

Zhang San didn't take these natives seriously, but he still had to do a good job of defending these natives, who knows how many of these people like to blow arrows or smear poison on daggers.

On the day of the attack, Zhang San personally boarded the ship and sailed to the capital of the northern country, and the 10,000 troops of the forbidden army were also on standby, after a day's sailing, the next day Zhang San's fleet arrived at the open sea of the northern country, first of all, ten gunboats began to line up and aim one side of the gun at the dock.

After the sky was completely lit up and the fog on the sea dissipated, the Ryukyu fleet was finally found on the opposite side, and there was chaos in the port for a while, Zhang San sat on the flagship and drew his sword and shouted: "Open fire!" ”

Ten ships began to fire one after another, and the cannonballs hit the opposite port and the city streets along the arc, raising a series of smoke, Zhang San looked at the effect of the shelling while discussing ways to improve it with Ling Zhen.

For example, the so-called flowering shell, the fuze technology should still be strengthened, the shell is either early or late to explode, the hit is all up to luck, this gap may be about half a second, but it is this slight error of half a second that greatly reduces the effect of the flowering bomb.

After running, the ship immediately turned and turned the side of the ship on the other side to the port, so that ten rounds of explosion in a row, Zhang San felt that the effect was not satisfactory, but the people on the island had already been frightened, and in such an era, shelling was tantamount to divine punishment.

So not to mention decent resistance on the dock, there is not even a single figure, the forbidden army then landed, this kind of broken port can only dock two ships at a time, and it is expected to take at least two hours when all the troops go ashore.

However, after disembarking from the two battalions, Zhang San saw that there was still no tendency to organize resistance on the island, and immediately ordered one of the battalions to march in the direction of the palace to prevent the opposing king from escaping into the mountains and forests with materials.

If there is resistance, defend on the spot, reinforcements will arrive later, the troops who received the order were immediately very happy, the battalion commander immediately gathered troops to charge, Zhang San immediately ordered to go to reinforcements after the three battalions disembarked.

But the third battalion had not set off for a long time, and the herald of the first battalion came back to report that the palace had been taken, and the king's family had been captured alive.

But the fighter plane is fleeting, and it is impossible for Zhang San to leave enough time for the opponent to assemble and prepare in order to test his troops, right? Therefore, when he saw that the place was frightened, Zhang San decisively ordered the troops to attack, and as a result, the country, which claimed to have gathered 40,000 troops and was ready to fight the Ryukyus, was taken by the Praetorian Guard with zero casualties.