Winter goes to spring, flowers are in full bloom, and the prairie at the beginning of April is the time of spring and brightness.

It is a pity that the rumbling hooves, crackling guns, earth-shattering shouts and desperate howls ruined the very good scene.

The majestic roar of the knights of the "Red Banner Army" resounded through the valley: "Kill Jiannu, kill Tartars, sons and daughters!" ”

"Don't be obsessed, dismount and kneel down and surrender to avoid death!" The Red Banner Army's preferential treatment of prisoners! ”

The Tartars are full of heart: "The Ming army is coming, brothers run!" ”

"That's the 'Red Flag Army', that's the 'Red Flag Army' that wiped out the Jurchens, you must not run blindly, only by surrendering can you live!"

The Mongolian persuasion kept coming: "Brothers, we are also Mongolians, and now we have taken refuge in the 'Han King' is a regular soldier of the 'Red Banner Army', the 'Han King' is benevolent and never bullies the Mongols, and the Mongols can live a good life as long as they follow the 'Han King'." ”

The cries of mercy came and went: "Sir, we have never betrayed the Ming Dynasty, and we have always been bullied by the Jurchens, don't fight, we surrender ......"

"We are willing to serve the 'Han King' and are willing to follow the army to pursue the Jurchens."

"Our tribe is as enmity as the Jurchens, sir, take us! We want to seek revenge on the Jurchens. ”

Those who follow me prosper and those who oppose me die! The "Red Banner Army" has been advancing for two and a half months, conquering all the way and surrendering all the way, and it is already 4,000 miles away from Shenyang.

In the endless steppe, there are flying troops participating in the search for yurts, and they have a wide field of vision in the hanging baskets, and fixed telescopes are set up, and the sheep and cavalry within 50 miles around the hot air balloon can be seen at a glance.

In contrast to the air raid on Shenyang, there is not only one flying army in the gondola under the hot air balloon used for searching, but a trio.

They carried only nine light 10,000 enemies, a fixed telescope, two clairvoyant scopes, weighing no more than 1,200 catties, each of them equipped with a mini gun, and could shoot at enemy cavalry less than 300 meters away from the hot air balloon at an altitude of 100 meters.

They can unfurl flags to point the "Red Banner Army" cavalry in the direction of the enemy's troops, and if the wind is in the right direction, the flying corps can chase the enemy in the wind.

If the wind is too strong or the wind direction is wrong, in order to prevent it from getting out of control, the hot air balloon can only take a fixed mode with the ground, which can only play a role in broadening the field of view and cannot attack the ground troops.

Even so, in the face of the flying army floating in the sky, the Tartars could only look up to the sky and sigh at nothing.

The Tartars are not stupid, they know how to stand tall and see far, and even a large tribal chief once trained falcons to find enemies and strive to be the first to anticipate the enemy.

Now that the Ming army has gone to the sky, like eagles, where else can they stay?

The equipment and combat effectiveness of the "Red Banner Army" are completely different, and the previous set of Tartars against Ming Chengzu did not work at all.

In history, Ming Chengzu once launched 500,000 soldiers and civilians to sweep the north, but unfortunately the Tartars chose to avoid the war.

In the end, it was equivalent to working the people and losing money, Zhu Di took the Ming army to the prairie for an armed parade, and retreated to the pass with few results.

This time, the "Red Banner Army" swept the north and achieved brilliant results, Monan and Mobei Mongolia suffered heavy losses, the Inner Khalkha basically surrendered, and more than half of the Outer Khalkha tribes were conquered by the "Red Banner Army", and a small half migrated to the north and northwest.

Now Hanzi, Wang Zhicheng, Sang Yu, and Wang Zhanpeng's four-way people have been killed to "Ao Ersu", which is the Ulaanbaatar of later generations, and it is also the largest living Buddha in the Khalkha Department in this era.

Due to the increasing number of Mongol tribes conquered, the number of Mongolian light cavalry attached to it has reached more than 30,000, of which half of them enjoy the treatment of the guards, and more than 3,000 have been selected as regular soldiers.

The expulsion of the Tartars was very effective, and with the Mongols taking the lead, the casualties of the "Red Banner Army" were insignificant.

Hanzi, Wang Zhicheng, Sang Yu and other soldiers who led the morale of the rainbow made persistent efforts to continue to the north, and the next stop was "Beihai".

It's a pity that the Hauge Department has already talked about the red change, and they learned from the Trans-Khalkha cavalry who fled north that the "Red Banner Army" had killed the "Ao Ersu" and did not dare to sit idly by, and began to migrate again.

The further north you go, the harsher the climate, as we all know, how do so many people live? The only way out is to go west, and Jiannu and Tartar have no second choice but to go west.

They drove the wagons full of belongings and grain, and the cattle and sheep that were kept for seeding, and they did not run fast with their families.

However, the "Red Banner Army" also did not advance quickly while searching and fighting, because Hauge set out a month early, and when Hanzi led his men and horses to the boundary of the "North Sea" in late May, he did not find Jiannu.

The "Beihai" area was so large that the search for nearly half a month found only sporadic Mongol tribes, and after chasing westward for a month, the "Red Banner Army" began to slowly return south at the end of July.

Wang Zhicheng, Sang Yu, Mao Chenglu, Pan Yingyong, and other seven battalions of men and horses will be stationed in the vast areas of "Beihai" and "Aoersu".

Their battalion has undergone structural adjustments, reducing the number of infantry and increasing the number of cavalry by 1,000 cavalry, thus meeting the standard of a new cavalry battalion with seven infantry and three cavalry.

In the future, an average of 2,500 cavalry battalions and cavalry battalions of more than 1,100 bicycle infantry should be formed to form at least 20 cavalry battalions to stay outside the pass, and maintain a full 50,000 iron cavalry.

In addition to the Mongol light cavalry, which enjoyed the treatment of the guards, the total number of cavalry outside the pass should be maintained at least 100,000, and with such strength, it was enough to eliminate the enemy within a radius of 5,000 li before it was formed.

In the spring of the next year, the construction of at least seven castles will begin between the "Beihai" and "Aoergao", and the two cities will be separated by no more than 300 li.

It will take three years to extend the Guanwai Castle, which is connected by the official road, to the northern end of the "North Sea".

Sand and gravel roads should be built in areas where conditions permit, simple dirt roads must be built in areas where conditions are immature, and concrete roads should be built as much as possible between Mo Nan and the cities within the Great Wall.

As for the farther north, the construction of castles will not be considered for the time being, the climatic conditions there are too harsh, and there are very few natives, as long as there is no large-scale immigration from Lao Maozi, there is no need for long-term garrisons, regular patrols, and the land cannot be lost.

All in all, from the northern tip of the "Beihai" to the port of Jinzhou, 8,000 miles away, if a certain city is attacked, the cavalry stationed in the north and south of the city closest to the city will be able to reach the battlefield in two days.

These cities cooperate with small castles, use fixed telescopes to form a defense system with points and areas, use flags during the day, and use light to communicate secretly at night, dividing the entire Monan and Mobei grasslands into two.

Three years later, the military information that "Beihai" needs to convey will be relayed during the day with the flag and the light code at night, unless there are irresistible factors such as weather reasons, the emergency military information must be delivered to the capital and sent to the military department within two days.

The cavalry that remained behind in the steppes was, of course, mainly cavalry, and more than half of the cavalry came from the subservient Mongol tribes.

On the prairie, various tribes talked about the change of Han color, and those who did not return to obedience migrated to the far west and north.

The rest are tribes managed by the "Red Banner Army".

Each tribe has the most combat-effective warriors and 30 people serving the "Red Banner Army", and it is not uncommon for them to be treated as regular soldiers.