Yue Fei led the army out of the customs to fight, and it has been more than half a year.

It's just September, and the weather is starting to get colder.

The late autumn of the Xiaoice River period was already cold enough to make people a little desperate.

It's not the coldest yet, and in another month, the outside will definitely not be suitable for any human activity.

For example, if you urinate outside, when the cold wind blows, you will definitely freeze on the ground with the person.

Although it was not yet the coldest hour, there was hardly anyone else in sight outside the tent of the entire Korqin tribe, except for some shivering guards, and the Tartars were all cowering in the tents to burn charcoal for warmth.

After Hauge led the blue flag away, according to reliable information, the Ming army swept away many small tribes in a row.

But it has not appeared in the Horqin area, after all, the Horqin troops are strong, and Oba has gradually relaxed his vigilance.

Some of the generals gathered in the Oba tent, and there were several large pots of charcoal burning in the middle of the tent, and it was very warm inside.

The Tartars were drinking mare's milk wine while discussing the invasion of the steppe by the Ming army.

Archie said:

"Great Khan, some time ago, the Ming army moved frequently, and many Mengyuan tribes were wiped out, and now they seem to have suddenly stopped moving."

Gao Jitai is the first fierce general under Oba, and he doesn't take the Ming army seriously.

Hearing the words of the military advisor, he was very disdainful:

"Hmph, that's because the Ming army didn't attack my Horqin department, as long as they dare to step into Horqin half a step, this general will definitely let their entire army be annihilated."

Amuio:

"The general can't be careless, since the Ming army can sweep all the way through the various tribes of Mengyuan, they will definitely not be as weak as Haoge said."

"Judging from the end of the year, with the arrival of winter, the temperature is getting lower and lower, almost reaching minus 30 degrees, their muskets cannot be ignited, and they are not suitable for military operations at all, and there will definitely be a temporary truce and truce, and the war will not resume until the beginning of spring next year at the earliest."

Dajitaitu:

"Yes, I support this statement, now it's cold and you can't go out at all, the Ming army must be very difficult to supply, they are all wearing iron armor, they can't keep out the cold at all, and they will definitely not invade Horqin ...... for the time being."

None of the Horqin elites thought that in such cold weather, the Ming army would launch an attack on Horqin.

After reaching an agreement, the Tartars all returned to their tents and went to enjoy themselves with the Han women they had stolen.

Is it true that the Ming army is all wearing iron armor as the Tartars say?

Of course not, as a traverser, how could Zhu Youjian not know that the end of the Ming Dynasty was in the Xiaoice River period.

Before leaving, Zhu Youzhen had already prepared cotton jackets, cotton pants and large quilts for the Ming army.

Don't look at the Ming army, they are still wearing iron armor, but they are wearing very warm cotton clothes, cotton pants, cotton hats and gloves in the iron armor, and even the war horses are wearing small cotton armor.

It's only late autumn, and it's not the harshest winter, let alone the coldest.

From the perspective of natural science, the ice age is a climatic phenomenon.

During the period of its occurrence, the temperature drops dramatically and causes a variety of disasters.

The last years of the Ming Dynasty coincided with the peak of the fourth Xiaoice in world history.

Due to the bad weather it bringed, countries around the world, including the Ming Dynasty, experienced violent turmoil during this time period, which directly changed the history of the world.

There have been four Xiaoice periods in the history of our country, the first of which occurred in the last years of the Yin Shang, which directly led to the Shang dynasty of the Zhou Dynasty.

The second time occurred in the late Eastern Han Dynasty, which led to the turmoil of the Three Kingdoms.

The third occurred at the end of the Tang Dynasty and led to five generations of troubled times.

The fourth occurred at the end of the Ming Dynasty.

The Xiaoice River period at the end of the Ming Dynasty was one of the most severe natural disasters in China's history.

According to the record of the famous historian Tan Qian in the early Qing Dynasty.

From the tenth year of Shunzhi to the thirteenth year of Shunzhi, the Beijing North Canal was frozen for 110 days every year.

And this period is also the end of the Xiaoice River period, and the peak of the Xiaoice River period at the end of the Ming Dynasty is in the Chongzhen period.

According to modern technology, during Chongzhen's reign, even the southern Guangdong region fell more than a foot thick snowfall.

All parts of the north were frozen for thousands of miles, all the rivers and rivers froze over, and the transportation was almost ruined.

Livestock, crops, and people were frozen to death and frostbitten countless times, and the temperature reached an astonishing minus 40 degrees Celsius.

At such low temperatures, boiling water splashes and instantly freezes into a white mist.

Trees and flowers will be completely sealed by rare "ice cubes", and people will feel cold and biting even when they wear several layers of cotton clothing.

It can be seen from this that the northern land at the end of the Ming Dynasty experienced what kind of tribulations.

However, in addition to the extremely cold weather, the reduction of agricultural production caused by natural disasters was also an important reason for the fall of the Ming Dynasty.

The peasant uprising at the end of the Ming Dynasty did not start in the Chongzhen period, in fact, the entire Ming Dynasty has been breaking out large and small peasant uprisings since its inception.

But the real peasant uprising affected by the Xiaoice River period should be counted from the Wang Er uprising.

In the seventh year of the Apocalypse, affected by the Xiaoice River period, the entire territory of Shaanxi was not harvested, and the people of Li could only survive by eating bark and grass roots.

In the beginning, the effects of the Xiaoice period were not yet fully realized.

Therefore, although a large number of peasant armies rose and fell, they could not shake the foundation of the Ming Dynasty at all.

However, after Chongzhen took the throne, the power of the Xiaoice River period was completely released, and the peasant uprisings throughout the Daming Dynasty became more and more frequent.

In July of the first year of Chongzhen, Wang Jiayin, Yang Liu, and others in Shaanxi rose up.

The main leaders of the rebel army such as Gao Yingxiang, Zhang Xianzhong, and Li Zicheng also revolted one after another around the third year of Chongzhen.

Although the main characteristic that led directly to the Xiaoice period was cold, it does not mean that it was the only characteristic of it.

In addition to cold, drought, locust breeding and rat plague are all characteristics of the Xiaoice period.

The most influential drought in the late Ming Dynasty was the Chongzhen drought that occurred during the six years from 1637 to 1643.

The severity of the current drought and the extent of the disaster are so vast that it has been shattered from ancient times to the present.

According to statistics, a total of 23 provinces were affected by the disaster at that time, among which North China, Hebei, Henan and other regions were even affected by the disaster for more than five consecutive years.

Moreover, this drought has shown extremely unusual characteristics, with drought in the north and flooding in the south.

As the name suggests, drought in the north and flood in the south means that while most of the north is experiencing drought, the south is experiencing flooding.

This distribution of disasters not only increases the complexity of disasters, but also makes disaster response and relief work difficult.

But that's not even the scariest of all. The perennial drought has also led to locust and rat plagues.

The locust plague and rat plague at the end of the Ming Dynasty generally occurred along both sides of the Yellow River, and lasted for a long time, with the longest one even breaking out continuously for five consecutive years.

Such a long period of disaster directly led to the loss of control of the disaster situation in the entire northern region, and the entire Ming Dynasty fell into an unprecedented desperate situation.

It can be seen that although the Xiaoice period was not the only reason for the fall of the Ming Dynasty, it was definitely the main reason.

Because of the arrival of the Xiaoice period, a large number of northern steppe pastures declined, and the Manchu Qing regime, as a nomadic people, had to try its best to go south.

The reduction in agricultural production caused by the Xiaoice River also caused peasant uprisings one after another, and finally pulled the entire Daming Dynasty down the abyss from the inside out.