Although there are still a small number of remnants of black soldiers who have gone into the deserted mountains and ravines to live a savage life, the imperial age system still recognizes that Zhao Dutian has completed the task!

Moreover, Zhao Dutian, who conquered the entire South America, gained an additional 50 years of life bonus!

The system also prompted that as long as Zhao Dutian conquered the entire Americas, the life span of the territory increase in the future would increase geometrically!

For example, before the conquest of the Americas, Zhao Dutian could only gain a one-year lifespan for one square kilometer of land, but after the conquest of the Americas, one square kilometer of land could directly gain a ten-year lifespan, and as the conquered land increased, the lifespan base of one square kilometer of land would increase significantly!

Of course, this is just an example, the current Zhao Dutian can't reach the terrifying increase of one square kilometer to gain a one-year lifespan!

However, South America was conquered, but the population was so small that the whole of South America, including the garrisons, was less than a million people......

You know, the population of the army and white autonomous cities alone can be nearly 500,000!

The blacks were cleansed, the blacks were cleansed again, the Indians and mestizos were cleaned, and the whole of South America became extra clean!

Without a population, the value of South America is naturally greatly reduced, and there are not even enough people for mining!

Zhao Dutian had no choice but to temporarily divide South America as an area to be developed, and only set up human towns and garrisons in the minerals with relatively high profits!

Across South America, hundreds of once-thriving towns have been abandoned!

It can be said that South America will not have any input to Zhao Dutian except for minerals......

However, in this way, the garrisons needed in South America have become very few, the 100,000 American garrisons have been pulled back, and the Clouey Guards can also be easily brought down, only one or two thousand militias are needed, which is enough to maintain the operation of South American minerals!

Those who mined were naturally white prisoners of war and obedient black slaves!

There were enough plantations and fields in the Mexican region to sustain the food production of the entire Han Empire, and the population needed less food......

California continues to play the role of the industrial heart of the Han Empire, the American War has been fought for so long, California is the least affected by the war, there is no additional expropriation, there is no military service, the people of California only need to work overtime in the factory is enough!

Although I am a little tired, I can eat steadily!

The Han Empire put down the last black rout, and the Far East Combined Fleet of the anti-Han alliance also sailed across the Indian Ocean, entered the Strait of Malacca, and officially stepped into the Pacific region!

I believe that in a few months, the Far Eastern Combined Fleet of the Anti-Han Alliance will be able to sail to Japan!

The Age of Empires system calculates the completion of tasks only by looking at the territory occupied, and does not care if there are people, even if Zhao Dutian sends people to plant flags everywhere in Antarctica, it is counted as what he occupies, but there is no human population in Antarctica, and the impact on the world is small, and the Age of Empires system will not send a task for Zhao Dutian to occupy!

After Nuoda won a South American bag, the Age of Empires system in Zhao Dutian's mind was like an explosion, constantly emitting a pleasant ding-ding......

[Congratulations to the host for completely annexing an entire continent and owning more than one-third of the territory of North America, overcompleting the yellow gunpowder task, and directly obtaining the science and technology of full yellow gunpowder, with a set of yellow gunpowder loading shell technology!]

Ding, detected the host to develop a rudimentary breech-loading rifled gun, and completed a specific combat test to obtain the complete Armstrong breech gun technology!

The Armstrong breech gun is a full-fledged range of breech-loading rifled guns with a wide range of model calibers, the main ones of which are of three main designs. The first design www.biquge.info the Fun Pavilion was a 20-pounder (95 mm) field gun, the second was a 40-pounder (121 mm) siege gun, and the third was a 110-pounder (180 mm) heavy gun.

The Armstrong cannon is forged from wrought iron and adopts a multi-layer composite barrel structure, and the whole gun is composed of large and small double barrels with a composite multi-layer barrel, in which the small tube is engraved with rifling. The shells were made of cast iron. Early shells used spherical shells, coated with soft lead like Mine's shells on the outside to devour rifling. In the middle and later periods, it was changed to a modern cannonball-type conical warhead. There is no information on the use of signal tubes for these shells. The weight of the iron solid bullet was about 50 kg (110-pound gun). Artillery can also use grenades, shrapnel and shotshots.

The principle of action of artillery shells is very similar to that of Minne. Coat the shell with a layer of soft lead. This allowed the shell to effectively envelop the rifling and rotate. Since it is a rear-loading gun, there is no problem of the front-loading gun that needs to lower the gun body and then ask people to run to the front to load. Ammunition reloading time is significantly reduced. Because the standard reloading procedure is prescribed, continuous fire is possible. The barrel was made of cast iron. Its multi-layered composite barrel is significantly lighter than a monolithic cast barrel. As a result, the performance of this gun was far superior to that of other types of artillery of its time. The gun can use both solid and grenades.

The major invention of the Armstrong gun was the Armstrong compression barrel, which refers to a method of designing the bore of the gun barrel. Specifically, the inner diameter of the barrel is parallel for a considerable distance from the bore, and then it is greatly reduced to cause so-called compression, and finally the inner diameter is compressed into a parallel inner diameter barrel of the same final caliber. The design on the Armstrong gun was such that the barrel inner diameter of about 6 feet behind the barrel was significantly smaller than the front inner diameter. When reloaded and fired, the small 6-foot inner diameter can be used to grind off the lead coating from the shell. This way, when the shell begins to rotate into the barrel, its diameter can match the caliber of the gun. This design greatly increases ballistic stability.

The Armstrong breech-loading gun has the performance of the front-loading smoothbore gun in the same quality caliber, and this is not a single gun, but a series that can replace all heavy guns!

However, the Armstrong gun also has a large number of problems to pay attention to, as the first powerful breech gun with outstanding combat performance, it will inevitably have the problem of jamming and a slightly higher explosion rate for a long time, however, its biggest flaw is that the gun is too high and expensive. And the yield is low.

The prototype of this artillery was the most glorious era of Britain in the 19th century on earth, even with the most developed industrial power of the British in the world at that time, they could not afford the consumption of mass production, and even banned the Armstrong gun with a front-loading gun for a time!

Suggestion: This artillery is to be used as a small number of strategic weapons, and it is not suitable for full equipment! 】