When it comes to Xianbei, the first thing that comes to Liu Yi's mind is the darkest period in Chinese history, the five Hu chaos in China, the so-called five Hu is the Xiongnu, Xianbei, Qiang, Di, and Qian, after the rebellion of the eight kings of the Western Jin Dynasty, they established sixteen countries with northern China in more than 100 years, until the Northern Wei Tuoba Jue unified the north to form the division of the Northern and Southern Dynasties, and Tuoba is also a part of Xianbei.

Now in the north of the Han Dynasty there are Xiongnu, Wuhuan and Fuyu three different races, and then north is Xianbei, his territory is far above the three tribes, but it is even more sparsely populated, about fifty years ago, the Xianbei tribe produced a leader named Tanshi Huai, quite a commander genius, in Liu Yi town before the Yan County more than ten years, the north of Xinjiang is the strongest with its strength, now this person has been dead for nearly 20 years, followed by Tuoba Xianbei, now the national strength is also extraordinary.

When Liu Yi was added as the king of Yan the year before last, Hu Yanshuo and the Tuge brothers and others sent beauties because they sincerely wanted to make friends with the eldest brother for generations, and Yu Fuluo's follow-up was for some purposes, and the biggest reason was Xianbei's strength, and the Huns were already faintly overpowered! When it comes to the strength of the cavalry, it is even more above the Hun Wuhuan, in the eyes of Fuluo, the only one who can restrain it or give it a fatal blow is the elite soldiers under Liu Yi. For the combat power of the Youzhou Army, he really has an unforgettable experience, and he is even more respectful and awe-inspiring to Liu Yi.

Yu Fuluo's thoughts naturally can't hide from Lang Sheng, for the culprit of the chaos in China in the future, Liu Yi naturally won't have any good feelings in his heart, if he has the opportunity, he also wants to erase it from the map, but this time is by no means now, Liu Yi will not have so much energy to deal with these aliens before the Han family is undecided, unless he comes to provoke himself first. From Wei You's letter, Liu Yi learned that these Xianbei envoys were still very respectful, and even kept mentioning the names of King Yan and the former general Gan Ning, called heroes, of course Lang Sheng would not be fluttering because of a few words from other races, his big country mentality is innate, it's better to be honest with me!

It is not surprising that Xianbei knows the name of Liu Yi, but now who in Mobei does not know the name of King Yan of the Great Han Dynasty? That's the number one heroic man in the country! And the knowledge of Ganning is afraid that it is because it swept away Goguryeo, when Xingba sent troops, Goguryeo was still nominally a subject of Fuyu, and the previous kings were also sent by this clan, but in the face of the good war and strength of the Han army, it remained silent when Ganning crusaded, and Fuyu was also an alliance with it during the heyday of Xianbei and was connected to the territory, so the knowledge of many things about the Han Dynasty here was passed on by Fuyu.

Nomads are generally fierce people, Xianbei is even more so, but Liu Yi's prestige is still something they dare not underestimate, the shock of the wolf war to the various ethnic groups in northern Xinjiang is too huge, 160,000 Northern Xiongnu coalition army was broken by this person with 80,000 soldiers, especially the frontal defeat, Liu Yi's shocking wolf howl has become everyone's nightmare, the Northern Xiongnu after this battle will collapse, replaced by Wuhuan and the Southern Xiongnu. And since Liu Yi sat in Beiping, the attitude of the Han Dynasty towards all ethnic groups has become extremely tough, the Southern Xiongnu and Wuhuan have been vassals, and the leader of Wuhuan seems to have a brotherly righteousness with Liu Yi, the king of Yan, which is also the reason why Xianbei has been encroaching on the Southern Xiongnu but has never dared to use troops against Wuhuan, Huyan Shuotuge brothers and others are still secondary, and they are most afraid of provoking Liu Yi behind them! 80,000 soldiers can break 160,000 cavalry, and now there are hundreds of thousands of elite soldiers under King Yan, and the Han is even richer than before, who wants to provoke such an opponent? At least have a detailed understanding of it!

After all, they also wanted to know what the big hero in the mouths of the Fuyu, Xiongnu, and Wuhuan tribes looked like, and whether his rule was as powerful as the rumors, if all this was true, their strategy would be changed, otherwise they would expand their power.

Liu Yi probably thought of this meaning in his heart, but he didn't have the idea of spending time on it, Cao Cao and Liu Bei couldn't be too busy, how could he have the time to deal with these aliens? It's good to come, they probe the Han Dynasty at the same time Lang Sheng can also observe some clues in these envoys, if it really starts a war with the Xiongnu or Wuhuan, Liu Yi will definitely give support, with these two clans in him will have a stable northern frontier, if he changes Xianbei, although he is not afraid, but after all, it will have a great impact on his great cause, Lang Sheng will never want to send troops outside at the same time, but also take care of the backyard fire!

Thinking of Gan Ning, and Liu Bei's construction of a beacon tower by the river, Liu Yi couldn't help but pick up a report that Fang had just submitted the day before yesterday. Liu Yi naturally expressed his support for this, the main battle weapons of later generations of warships are artillery and aircraft, these two things are absolutely impossible to build if he wants to, because they are far beyond the scope of this era, but for the concept of the person in the instrument, he feels that it is very feasible.

Now in the battle of the navy, the bow and arrow are still the most important main battle weapons, or the hardness of the hull is compared, Gan Ning did not use the huge and sturdy hull of the sea dragon ship to bully the other party when he fought with Jiang Qin on the Yangtze River, not to mention the sea dragon ship, even the second-class dragon ship is also rampage on the river! This is the embodiment of advanced technology in war, but this kind of tactics relies too much on the flow of water and the direction of the wind, and it also has a great loss on itself, after all, according to Xu Gang's research progress at this time, it will take a long time for the iron armor to be used on the warship, according to Master Xu's estimate, I am afraid that it will take three or four years!

The biggest difficulty in this is the creation of iron plates, not only to have a certain thickness and hardness, ductility and elasticity also have great requirements, which puts forward higher requirements for forging, now on the armor Xu Gang can already do this, but the iron plate used in the warship is not much larger than the armor, the end of the Han Dynasty can not be as advanced as the riveting and welding process of later generations, although with Liu Yi's inspiration, but the research on this matter is by no means a short-term success.

In this way, the long-range strike weapons on the battleship are extremely important, and the bow and arrow can only kill the opponent's soldiers and cannot damage the hull, and the bow and arrow will not play a big role if the enemy is well guarded. But what if the Sky Cannon could be moved to the warship and used? More than 100 catties of cobblestone with the force of falling in the air, I am afraid that it can penetrate the deck of the enemy ship in the future, this blow is more deadly than the arrow, and then imagine the scene of hundreds of cannons on dozens of warships throwing boulders at the same time, what a beautiful picture it will be!

In the utensils, Liu Yi advocated that everyone give full play to their imagination, as long as it is not too unrealistic, it can be tested, this measure has greatly enhanced the creativity of those craftsmen, and in Liu Yi's view, as long as one of them can be used in practice, he can be worth the capital! Therefore, in addition to the normal work, everyone's imagination can be described as varied, and the most peculiar is the white ink bird.

It is rumored that Lu Ban has made a wooden bird that can fly in the air for several days, and there is also such a record in Feng Ruoxi's family biography fragments, but it is incomplete, but Liu Yi, who has experience in later generations, has seen the clues in it, and its ingenious conception is definitely not as unreasonable as later generations say, on the contrary, it has a sufficient physical framework! That kind of flying bird is a product of aerodynamics, to put it bluntly, it is with the help of wind, and when there is no wind, it can be powered by the power of the machine, remember the little man who danced the sword? The principle is the same, more ingenious is that the machine can run on its own to replenish energy when there is wind, as long as the wind stops for no more than the limit of the machine, theoretically it can fly forever!

And the white ink bird is obviously improved on the basis of Lu Ban's design, no longer using wood as all the material, but using animal skins and other things, which makes the weight of the bird further reduced, and invisibly increases its time in the air, Liu Yi still remembers a recent experiment that nearly half a person tall bird soared in the air for an hour, and the height above the ground is afraid of dozens of zhang, with this foundation, if it can be expanded, expanded to be able to bear the weight of a person, And what kind of effect will it have?

(Chapter 3 to.) ）

These are not mentioned for the time being, in addition to using the catapult as the main battle weapon of the Flying Tiger warship, there is another thing that is less difficult to implement, after all, if you want to exert enough power, there will be certain requirements for the weight and volume of the catapult, and it will also increase the load of the ship, so the introduction of the bombardment cannon is still accumulating experience in continuous failure, but Liu Yi has seen hope from its process! In comparison, the bed crossbow is much simpler, in which the white ink technique plays a big role, and with many discussions and studies with those shipbuilders, a new type of warship equipped with seven bed crossbows has now been built!

The bed crossbow may not be as powerful as the Sky Cannon, which can deal a devastating blow to the enemy's medium-sized ships, but its power is beyond the reach of ordinary shields? In the test, within a distance of two hundred paces, the bed crossbow fired a huge crossbow arrow that smashed through seventeen long shields, Liu Yi had no doubt that if it was close enough, it would be able to penetrate the enemy's hull, but this was secondary, with the above performance, it would become a nightmare for the enemy's naval soldiers!

However, such a new warship is currently in the Fangshan dock belongs to Liu Yijun's top secret, even in the future water war until the necessary moment Liu Yi will not let Gan Ning use it, good steel is used on the blade, advanced technology is used too early will only make the enemy strictly guarded, its appearance must at least be accompanied by the destruction of the enemy's brigade of naval forces, only in the key large-scale battles, it can play a more unexpected effect, that sudden blow will be fatal!

"Liu Liu, go and invite Concubine Yue to come, by the way, call Concubine Xi again! If you go to sleep, forget it! Unconsciously, it was late at night again, Liu Yi put down the newspaper in his hand and moved his body, at this time, he couldn't help but think of the foot massage method on the autumn moon night, and said to Liu Liuyan as soon as his mind moved, and remembered what he said in the report and added Feng Ruoxi.