In the Spring and Autumn Period of China and the Warring States Period, the three capitals of the Qin State, Yong, Liyang and Xianyang, are all arranged on the north bank of the Wei River, mainly because there is a flat east-west avenue in the north of the Wei River, which can go straight to the Jin Kingdom, which is more economically and culturally developed at that time, and the road in the south of Weishui does not have these superior conditions.

The same is true of the imperial capital of China in later generations, the reason why the imperial capital can become the imperial capital is because the location of the imperial capital is a transportation hub, which can connect the Northeast Plain, the Mongolian Plateau and the Shanxi Plateau respectively, and is the hub of the northern part of the Central Plains to these three important locations, with an extremely important strategic location.

In ancient times when the technology was relatively backward, the use of rivers for water transportation was the most convenient mode of transportation, and it was also the largest way of transportation, but subject to the constraints of practical conditions, it was difficult for the capital of many small countries to choose a location close to the main river, so in order to facilitate the transportation of materials, the imperial court would often use huge manpower and material resources to dig canals to make up for the lack of natural transportation capacity.

For example, during the Warring States Period, in the second year when King Wei Hui of Wei moved the capital to Daliang, he mobilized the people to dig a chasm to communicate the main waterway between the Yellow River and the Huai River.

The fourth point of choosing the capital is that there should be mountains and rivers around it, which is easy to defend, in order to ensure the safety of the capital, it will not be easily captured by the enemy, and the dynasties of all dynasties have required that the area where the capital is located is a dangerous place, and the reason why Xi'an in later generations has become the ancient capital with the longest time in ancient times, the Guanzhong area where it is located is surrounded by mountains and rivers, and it is obviously one of the reasons that it is easy to defend and difficult to attack.

Not only that, but it is best to have dangers around the capital to prepare for the last resistance. The ancient capital built near Chang'an, Feng and Hao in the Western Zhou Dynasty, Xianyang in Qin, Chang'an in the Western Han Dynasty, Northern Dynasties, Sui and Tang Dynasty, the city site did not cross the Bashui, the reason is to "face the river as the abyss". Because the main threat to these dynasties came from the east, the Bahe River flowing north and south was undoubtedly a natural barrier. Luoyang, the eastern capital built by the Sui Dynasty, looked at Yique in the south, Bishan in the north, Lushui in the east, Jianhe River in the west, and Luoshui ran through it, obviously taking into account the needs of defense when selecting the site.

If you don't have the geographical shape surrounded by mountains and rivers, you have to station heavy troops around the capital, with the help of the Great Wall of flesh and blood, which will greatly increase the capital's demand for food and materials from other places.

The reason why Taizu planned to move the capital to Luoyang or Chang'an at the beginning of the Northern Song Dynasty was, in his words, to go to redundant troops according to the victory of mountains and rivers, follow the stories of the Zhou and Han dynasties, and settle the world. He was worried that the capital of Kaifeng and the stationing of heavy troops would inevitably greatly increase the burden of the people in transporting grain, and that within a hundred years, the people of the world would be exhausted.

Fifth, the economy of the region must be developed. Since the capital city is the most populous city in the country, it consumes a huge amount of food and daily necessities, and the long-distance transportation is so inconvenient in ancient times, if the area where the capital is located is economically developed, it can reduce the degree of dependence on foreign places.

As a result, the locations of ancient capitals were often economically developed areas. Before the middle of the Tang Dynasty, the economic center of gravity of the Chinese region was in the middle and lower reaches of the Yellow River in the north, so the capitals of the unified dynasty were located in Chang'an and Luoyang, and later the economic center of gravity moved south, forcing the capital to move east and south, first to Kaifeng, near Jianghuai, and then simply to Nanjing, which was located in the south of the Yangtze River.

As far as the overall economic pattern of China is concerned, the capital city needs to be located in or close to the most economically developed area in the country. As far as the sub-region is concerned, the location of the capital city should also be a relatively economically developed area in the region. During the Warring States Period, the Qin State moved the capital from Liyang to Xianyang, mainly because the area where Liyang is located is saline-alkali and salty, and has not undergone long-term development and transformation, and the economy is backward, while the Xianyang area is densely populated, developed early, and Zhongnan Mountain is rich in products and inexhaustible. Later, Beiping, the capital of the Yuan, Ming and Qing dynasties, although it is no longer the center of economic gravity, is also a relatively economically developed area in the north, at least all the surrounding cities are not comparable to Beiping.

Sixth, the mountains and rivers should be beautiful and the scenery should be pleasant. The ancient emperors were full of ambition, drinking and gluttony, but also indulging in the sound of dogs and horses, hunting and recreation. In this way, this life was not in vain, they not only built a large number of palaces, pavilions, ditches and ponds in the city, but also built a palace annex and a forbidden garden outside the city.

Huaqing Pond at the foot of Lishan Mountain in Xi'an, West Lake in Hangzhou, and the western suburbs of Beijing were all places where emperors indulged in amusement.

For this reason, when choosing the address of the capital, successive rulers often also required the capital and its nearby mountains and rivers to be beautiful and pleasant. It is said that the reason why Gaozong of the Southern Song Dynasty made Hangzhou the capital was to covet the beautiful mountains and rivers around the West Lake. even said: "Lin'an, the capital of Gaozong, is just greedy for the prosperity of the West Lake."

These are the bases for the ancient emperors to choose the capital, of course, there may be some other reasons, but these are definitely the conditions that must be considered when choosing the capital.

According to the analysis of these conditions, Rahman I chose to set the capital in Moldova, which is also a good location, after all, close to the Guadalquivir River, the transportation is very convenient, the people have water and water and the defense of the capital is also guaranteed, and the scenery must be good, so naturally there is no better location than here.

The port of Gibraltar is already close at hand, and Ang Lee and his fleet will soon enter the port of Gibraltar, but because the port of Gibraltar is still some distance away from the capital of Spain, Ang Lee will leave for Moldova after resting in Gibraltar for a few days.

To Moldova can take the land route, you can also take the waterway, the two roads can be chosen at will, the distance by land is relatively close, it is five or six hundred miles away, and the waterway needs to go west first, and then from the mouth of the Guadalquivir River upstream, directly to the capital of Spain Moldova, the distance of this waterway is two thousand miles away, however, because the waterway only needs to take a boat, so, the waterway is relatively easy, and by land, the consumption of resources will be greatly increased, after all, There are so many vehicles in the fleet, and fuel consumption is a big statistic.

Therefore, if Ang Lee needs to go to Moldova, he will definitely choose to take the water route instead of taking the land route in order to get shortcut.

But because Gibraltar is a place that Ang Lee has his eye on, it is natural that he needs to stay here for a little longer, and even some of the soldiers and ships need to stay here to control this important port.

The fleet soon entered the port, and many people gathered at the docks, which was naturally to welcome Ang Lee's arrival, and the top local officials also came, including Rahman's henchmen, but Rahman himself remained in the capital city of Moldova on the grounds of ill health, and did not go to Gibraltar.

Li An doesn't care about these either, after all, Li An is not abroad now, and he doesn't need the king to greet him personally, especially if he is still in a border port, it is even more useless, and it would be good to be able to greet him in person when he went to the capital.

This time, he was also greeted at the port by Rahman's henchmen, but his status and rank were much higher than those of the one who had boarded the ship before, and the rights he had were not comparable to those of the previous one.

There are many kinds of henchmen in any ruler, some of them are super capable and powerful, some are just ordinary guards, or even just cooks.

After the fleet docked, Li An shook hands with Aqimu who greeted him for a while, and then saw Aqimu stunned and looked at the Datang convoy that came ashore one after another, and was speechless in surprise.

This Aqimu can be regarded as a skilled general with bows and horses, and he is quite confident in the combat effectiveness of the war horses, but when he saw the ironclad convoy of the Tang Empire, he was still completely shocked, he is not a fool, and at a casual glance, you can find that the combat effectiveness of these ironclad chariots far exceeds that of the heavy cavalry, and even, there is no comparison at all, and the difference in size is too big.

Although before, he had long known that Datang had an ironclad car, which walked faster than a war horse, and swords and guns could not hurt it in the slightest, but after seeing it with his own eyes, he was still shocked.

Azimu's subordinates were all shocked, and everyone was stunned by these iron turtles that could walk on their own.

Li Ang has seen this scene countless times, every time he goes to a place, as long as these equipment are exposed, it will attract such exaggerated attention, and every time he looks at these uninformed hillbillies, Li An and the soldiers under his command can have a very proud feeling.

"General Aqimu, I haven't seen these ironclad cars! It's okay, I have a chance today, let's go up and have a look! ”

Li An said very politely, and asked one of the cars to stop on the side of the road and let Aqimu see it himself.

Aqimu said excitedly: "Thank you Li Shilang, it's amazing that such a big iron bump can go so fast." ”

After saying that, he walked to the ironclad car.

Ang Lee smiled, pulled a scimitar from the waist of an Arab soldier, and then, before anyone could react, slashed at the ironclad gun carriage.

"Bang Dang ......"

Due to the excessive force, the blade collided violently with the ironclad car, not only bursting out a large number of sparks, but also making a loud noise, which startled the people around.

Aqimu was naturally taken aback, but he quickly understood that this was Li An's performance to show the defense of the ironclad car, so his mood immediately relaxed.

But when he saw that the scimitar in Li An's hand had been curled, his heart was still very shocked, the elite soldiers under his command had the best weapons, but in the face of these iron lumps, it was really useless, and he only slashed and curled the blade.

Aqimu hurriedly looked at the Tang Dynasty ironclad artillery cart that was being chopped, and found that there was a not very deep knife mark at the cut position, and the depth was almost negligible.

Obviously, the scimitar did not cause serious damage to the ironclads, but the scimitar itself was damaged by the ironclads, and if the ironclads attacked his soldiers, his soldiers would be powerless.

"Aqimu, do you want to cut a few times and try the hardness of our Datang ironclad car."

Li An handed the scimitar to Azimu and said with a smile.

Aqimu smiled and took the scimitar and said, "No need, I've seen it just now, hehe!" ”

After speaking, he handed the scimitar to the soldier behind him, and then hit the ironclad gun car with his fingers, feeling the thickness of the iron sheet of the ironclad gun car.

And the reason why he didn't cut it himself was naturally because he believed that he couldn't split it, maybe he would use too much force to chop and break the scimitar, so he would be ashamed.

In addition, the Datang ironclad artillery trucks are all painted, and after Li An chopped and chopped, he has already left another ugly scar, if he doesn't know how to cut a few more times, he will leave a few more scars on the ironclad artillery truck, which is not very good.

And with a few taps with your fingers, you can really feel the thickness of the iron armor, and at the same time, it will not damage the newly painted paint on the iron armor gun truck, which is more etiquette.

"The voice is thick and majestic, it seems that the thickness is very high, and it can't be hurt by a sword! It's a good thing. ”

Aqimu looked envious, and felt very shocked and frightened that the Datang army could be equipped with such powerful weapons, such a powerful army was not something they could fight against at all, even if he gathered all the soldiers and horses under his command, it was not the opponent of the Datang ironclad corps in front of him.

"It's just ordinary, do I have more powerful weapons in Datang? I'm going, I'm going to go in and have a look. ”

Li Ang said very generously.

After all, there is no possibility of stealing a teacher, no one can learn the ironclad car manufacturing technology of the Tang Empire, the engine alone is a hurdle they can't overcome, and rubber tires are not something they can build.

"Thank you Li Shilang, how do you get in here."

Azimu was overjoyed, and he walked around the ironclad cart, and although he found a location that looked like a door, the door was closed, making it impossible for him to enter.

Li An opened his mouth and said, "Open all the doors and windows." ”

When the subordinates heard the order, they immediately opened the main hatch at the tail and the emergency entrance at the top, as well as the driver's entrance in front of the left, and suddenly, the internal structure of the ironclad gun carriage was exposed to everyone.

Azimu and his subordinates were stunned when they saw the complex structure in the car, such a complex structure made them unimaginable, they couldn't believe that there would be such a complex mechanical structure in the world.

Because the driver's hatch and the top emergency hatch are narrow, only the large rear hatch is the most suitable for entry and exit.

Li An beckoned to all the soldiers except the driver to get out of the car, and then personally took these guys to the ironclad gun car.

Because he had never seen these things, Azimu was too frightened to touch any parts after entering the vehicle, for fear of causing an accident.