At the end of January, the ice and snow began to melt, and the climate in the capital of Zhaoguo was biting cold, but under the thin ice and snow, the green grass began to sprout, and day by day it drilled out of the ground, stubbornly and curiously looking at the world.

Shangguan Che, who got off the ya, quickly got into the carriage and went straight to Jiangfu.

Before entering the gate of the Jiang Mansion, Shangguan Che saw Jiang Yuetang trotting towards him, and a smile suddenly appeared on his face.

Jiang Yuetang handed him a piece of hot jujube cake and said, "Teacher, eat it while it's hot." ”

Her voice was crisp and sweet, which made Shangguan Che even feel a little less tired when he heard it.

Shangguan Che smiled and took three or two bites and ate them, and Jiang Yuetang took his hand and entered the study with satisfaction.

From October last year to the present, Shangguan Che has been teaching her the knowledge of seeking the 'country' for four months, which has opened her eyes, and she has gradually mastered a set of methods for the monarch to seek and govern the country, and the whole person's thinking and understanding are also very different from before.

Shangguan Che sat down, and Zhen Huiyuan ordered someone to bring a sumptuous dinner, so Shangguan Che and Jiang Yuetang had dinner together.

After dinner, Jiang Yuetang personally poured tea for Shangguan Che, and Shangguan Che began to lecture.

In 1206, Genghis Khan unified Mobei and established the Great Mongol State, and then began his expeditions to the east and west, expanding his territory, and by 1220, he had conquered Central Asia and Western Europe. ”

Shangguan Che drew a map for Jiang Yuetang to show as he spoke, and Jiang Yuetang looked at the map and asked, "Teacher, didn't the monarch of the Southern Song Dynasty stop this growing force at that time?"

"Of course, the Southern Song Dynasty has been stubbornly coping, but at that time the Southern Song Dynasty was coexisting with Jin, Liao, and Xia, and its own territory was not large, after the establishment of the Great Mongolian State, the power of the Jin State and the Xia State gradually declined, and Genghis Khan successively captured the Western Liao, Western Xia and Eastern Xia, and expanded his own power. In this case, the strength of the Great Mongolian State gradually surpassed that of the Southern Song Dynasty, and it was obviously difficult for the Southern Song Dynasty to compete with it. ”

Jiang Yuetang nodded.

Shangguan Che continued: "Genghis Khan had a total of eight sons, four of whom were descendants, in order - Jochi, Chagatai, Ogedei and Tore, after the death of Genghis Khan, his son Ogedei succeeded to the throne, and Tore was in charge of the country. ”

Jiang Yuetang asked, "Why isn't it the eldest son Jochi who succeeded to the throne?"

"One said that he had died of illness before Genghis Khan's death, and the other said that his identity was doubtful, and his younger brothers Chagatai and Ögedei often quarreled with him over this matter, and Genghis Khan finally chose the most politically discerning third son, Ögedei, as his heir. ”

"Why is his identity suspicious?"

It is said that his mother had been taken captive by the leader of another tribe, and that Genghis Khan had rescued her later, and that he had given birth to her on the way back when she was pregnant. However, it is also said that he was Genghis Khan's own son, because his mother had not been in captivity for more than nine months, and his mother and Genghis Khan were husband and wife before that. Shangguan Che looked at Jiang Yuetang and said, "This matter may only be known best to Jochi's mother, and outsiders can only make rough guesses." ”

"Uh-huh. ”

Although Genghis Khan had made it clear that Ögedei would succeed to the throne, according to the Mongolian tribal council system, Genghis Khan's will could only serve as a reference, and the final decision had to be made by Kuriltai (the tribal assembly held during the election of the Great Khan in the Middle Ages), so the throne was vacant for two years, and during these two years, Ogedei's younger brother Torre was in charge of state affairs.

Two years later (1229), Ogedai succeeded to the throne, he and Torre obeyed their father's instructions, began to go south to destroy the Jin, after the Jin was destroyed, began to attack the Song, in 1241 AD, Ogedai drank to death, a total of 12 years of reign. After the death of Ögedei, his imperial concubine was the regent of Mazhen Delegona for a total of 5 years. During her regency, she formed a party for personal gain, excluded dissidents, and allowed some uneducated and unskilled people to hold important positions in the imperial court, which once brought Mongolia to the brink of collapse. Later, Namazhen Delegona violated the last wish of Ögedei and put his son Guiyou on the throne, but Guiyou was weak and sickly and could not govern the affairs of the court at all, so the decision on major affairs was still with Namazhen Delegona. In the third year of the reign of Emperor Qinshu, the kings held the Kuritai Assembly (a kind of assembly to elect the Great Khan in the early Mongol Empire), strongly demanding the abolition of the ruling power of the Empress Qinshu and the establishment of Torre's eldest son Möngke as king. ”

Shangguan Che saw that Jiang Yuetang could listen attentively, so he asked, "Don't you feel bored with such a complicated history?"

"No, I think it's funny. Jiang Yuetang said with a smile.

"That's good. Shangguan Che smiled and continued: "After Meng Ge succeeded to the throne, he began to devote himself to attacking the Southern Song Dynasty and Dali. In 1252, Meng Ge ordered his brother Kublai Khan to attack Dali, and his brother Kublai Khan led his army to attack Dali, and nearly two years later, Kublai Khan captured Dali. In 1258, Meng Ge, Kublai Khan, and the general Wuliang Hetai attacked the Southern Song Dynasty in three ways. Meng Ge mainly attacked Sichuan, and it took him a year to capture most of Sichuan, but when he attacked the Diaoyu City in Hezhou, he could not attack it for several months, and Meng Ge suddenly died in the Diaoyu City of Hezhou during this period, and he didn't even have time to write a will. Kublai Khan's half-brother Moge immediately sent someone to secretly inform Kublai Khan of the news, telling Kublai Khan to hurry back to inherit the throne. Kublai Khan thought that he had been ordered to attack the Southern Song Dynasty, but he had not yet captured it, and did not dare to return in vain, so he did not return immediately, but continued to attack the Southern Song Dynasty. Soon after, Kublai Khan's wife Chabi sent a secret envoy to send a letter, saying that the ministers wanted to make Kublai Khan's younger brother Ali Buge king, and asked Kublai Khan to hurry back, so Kublai Khan immediately withdrew his troops and returned north. Kublai Khan's struggle for the throne with his younger brother Ali Buge lasted for four years, after which Kublai Khan defeated Ali Buge and became the heir to the throne.

After Kublai Khan ascended the throne, he focused on attacking the Song Dynasty, and at that time, if he wanted to destroy the Song Dynasty, he had to capture Xiangyang, so he sent troops to attack Xiangyang City. From the perspective of topography, it is obvious that the Song army is in an advantageous position, and the Song army is stationed in Xiangyang City is the Lu Wende military group with ten years of experience in defending the city in the Xiangyang area, so the ability of the two sides is comparable at the beginning, and it has been a stalemate for 6 years, and the military group of Lu Wende and Lu Wenhuan was finally exhausted and surrendered. ”

"Why are the military groups of Lü Wende and Lü Wenhuan exhausted? Is it because the means of defending the city are not as good as those on Kublai Khan's side?" Jiang Yuetang asked.

She had heard countless deeds of defending the city with less than many, and now that she had heard that the two sides were equal in strength, she naturally wondered why one side would lose later, and what was the reason for the defeat.