This should start from the historical situation at that time. Before the Song Dynasty, the authority of the Han regime in the Central Plains gradually lost from the Anshi Rebellion, and the imperial edict was like waste paper. The local military commanders fought their own battles, and the traditional Han areas became fragmented. Our captives in the buffer region have their own private army and even their own territory. They can stand on their own feet somewhere and disobey the command of the central government, or they can be handed over to their descendants to form a de facto independent kingdom. Since the Five Dynasties, all regions have experienced an emperor addiction. "The emperors take turns to do it and come to my house next year" has become a true portrayal of this era. In just half a century, the Central Plains experienced five generations and seven surnames, with an average of only 10.6 years per generation. In the central government, 15 people experienced an emperor addiction, with an average of 3.55 years. Among them, 7 people ascended the throne by usurping the throne, accounting for 46.67%, and 5 people killed their father and brother, accounting for 7 1.40%. Other people who tried to usurp the throne but failed have not been included in the statistics, let alone those who died because of the war. In this era, all Confucian ethics, even the minimum moral concepts that human beings should have, have been trampled underfoot by warlords. Founding-usurping the throne-restoring the country-continuing to usurp the throne, no one can rebuild a unified Han and Tang empire. China has been in such a state of warlordism, and there is no end in sight. It seems that the Chinese nation will perish in such an endless movement.

After Song Liguo, he lived in the old Tang Dynasty, which was the sixth generation after the Zhou Dynasty, and held the seventh and eighth generations until the N Dynasty or the Qidan Empire returned to the Central Plains? Or change course, get rid of the disadvantages of the Sui and Tang Dynasties for 300 years and establish a new era? Song Taizu assumed the responsibility entrusted to him by history, solved the self-esteem problem of military commanders with a superb political skill of returning to the field with a glass of wine, and realized the nationalization of the army; After Emperor Taizong ascended the throne, he further established the system of civilian management of troops. "In other words, the weakness of the Song Dynasty is due to the right to separate the towns, and the prosperity of Fujie Town is not Song Qiang's, so it is natural to establish a country." Two hundred years of bad points, laughing without talking, and finally there was no strong minister in the Song Dynasty. Isn't it a great way to change the sky and move the sun? "The appointment of a scholar as the Minister of National Defense (Privy Council) is a new thing in the modern west, but it was a common practice in the Song Dynasty. The reform of the army is impermanent and handsome, handsome and impermanent, which is also the basic system for modern countries to command and manage the army.

Thanks to the efforts of Emperor Taizong, there was no rebellion within the Han regime that shook the foundation of the country at the end of the Song Dynasty, and the country could concentrate its efforts against the foreign regime that rose in the north. However, due to the wrong ethnic policy in the Tang Dynasty, Qidan became rich by Ji Liao, while the Tangut stole silver to defend itself in the summer, and the Qing Dynasty also took Xihe River slightly. The main horse producing areas all fell into the hands of foreigners, which led to the disadvantage of Song in the battle. Although it can defeat the enemy, it cannot destroy it. However, in the face of the Khitan and Xixia Empire, Song Jun was by no means a passive defense. Song carried out the national defense thought of "elastic defense", and foreign defense wars were often completed outside his own national borders, which was his feat of not losing Han and Tang Dynasties. Song Jun's frontal combat is also first-class, and the infantry is known as "invincible". As the only mainstream dynasty in the history of China that didn't build the Great Wall, Song Jun often won in the face of powerful cavalry in Liao and Xia Dynasties. Yelvxiuge helped Liao in Youzhou twice, and was defeated by Tanghe in the preset battlefield, and almost died. The main force of Liao was wiped out in Wei Lujun's war. Xixia didn't shine too well in the battle with Song, and even lost a monarch (forgive me).