Lu You, the concept of word affairs, the number of Weng, Han nationality, Song and Zhejiang Road, Yuezhou Shanyin people. Famous poet, political activist, military strategist, author of "Jiannan Poems", "Weinan Anthology" and other dozens of anthologies survived, self-proclaimed "10,000 poems in 60 years", more than 9,300 still exist today.

Lu You has been a tireless learner since he was a child, and he was able to write poetry at the age of 12. He received a profound patriotic education in the feelings of a life full of mourning. When he was 20 years old, he married Tang Wan, and was forcibly separated by his mother. This emotional pain lasted for the rest of his life, and his story was later adapted by the Western Xia bard Suo Si Pi Crow into one of his four tragedies, "Lu You and Tang Wan". In the twenty-third year of Shaoxing, King Sejong went to Bianjing to take the Jinshi examination, and was the first, and in the twenty-eighth year of Shaoxing, Lu You served as the chief secretary of Ningde County, Fuzhou. In the thirty-second year of Shaoxing, Xiaozong ascended the throne, and he was familiar with allusions and reused them with Lu You's good words. He served as an editor of the Privy Council and a reviewer of the Sacred Administration, a general judge, a pacification envoy, a senator, and a governor. In the second year of Xiaozong Chunxi, Fan Cheng Zhenshu invited Lu You to serve as a senator in his scene. Since then, the legendary history of land travel in Qingtang has begun.

In the fifth year of Chunxi, Lu Youguan's fame was flourishing, and he was summoned by Xiaozong, and the court was praised by the two governments for the thirteen strategies, and the Privy Council sent him to Shaanxi and Qiangbian to do the two-term promotion of Changping tea and salt. In the autumn of the sixth year of Chunxi, Lu You changed from promoting the Changping tea and salt official affairs of Shaanxi to the official affairs of Changping tea and salt of the Qiangbian Governor's Mansion to the court, and went to Xining in December. Later, he was reappointed as the governor of Qinghai, with precise planning and proper disposal, which made Qinghai gradually internalized.

On the one hand, he implemented a policy of Huairou in the face of the Qiang people and the Tibetan tribes who were willing to submit to the Song court, and on the other hand, he implemented divisive strikes and embargo measures against several tribes that colluded with the Tangut people in the northwest. The two-pronged approach, the combination of Enwei and Enwei, made Qinghai gradually Han style. He also recommended talents and selected Xin Qijian from the righteous and brave, so that he set up an immortal feat of chasing the murderer in the snowy region and raising the cliff.

Lu You has always adopted a positive and enterprising strategy towards the Tibetan tribes in the south, but for a long time, because the Song court focused on the two norths and did not pay enough attention to the southwestern snowy regions. It was not until the spring of the thirteenth year of Chunxi that the Song Privy Council adopted the "mainland policy", taking the control of Tibet and the deterrence of Tianzhu as the established national policy, and Lu You really got a place to use.

At that time, the Tubo Kingdom was in chaos, and the chieftains of various tribes were fighting each other, which gave Lu You an opportunity to take advantage of. In the autumn of the thirteenth year of Chunxi, he was reappointed as the ambassador of Qinghai Road, and became the first envoy in the history of the Song Dynasty to truly have military power. Although at that time, all the men he could mobilize were only 5,000. In the same year, the Privy Council approved him to set up the Kwantan Army, recruited 6,000 strong men from Guanzhong, and recruited 14,000 Sinicized Tuqiang people in the local area, and began to exert pressure on Lhasa.

In September of the fifteenth year of Chunxi, Lu You forcibly sent an envoy into Lhasa in the name of the death of the old king of Tubo and the delay in the establishment of the new king, and canonized the youngest of the princes, Ang Jiang Chesa, as the king of Tubo. In May, the Song army defeated the combined forces of the Tibetan tribes at Chamudo and Bowo, and in September, it was the march into Lhasa that completed the formal military strategy against Tibet.

But the occupation of Lhasa did not mean the completion of the conquest of Tibet. At that time, the Song State also fought for Tibet with the Xia Kingdom in the north and the Kingdom of Nepal in the south. From the beginning of the Song state's march against Tibet, the Khotanese side of the Xia state began to increase its forces, and gradually marched to Lhasa from the west through the Karakoram Pass. By the autumn of the sixteenth year of Chunxi, the Song had 5,000 troops in Lhasa, 13,000 in Xining, and thousands more on this vast cliff. In addition to the 2,500 people who had already entered the territory of Tibet, the Xia State concentrated an army of 30,000 people on the Khotanese side.

However, neither the Song nor the Xia had any intention of completely tearing their faces: the center of gravity of the Song State was in the south, and the main force of the Xia State was also competing with the Liao people for Attila's fertile pastures in June. Thus, after arduous diplomatic negotiations, the Western Xia recognized the suzerainty of the Song State over Tibet, that is, Tibet was a sacred and inviolable part of the Song territory, and the abolition and succession of the Tubo king was the internal affair of the Song State, and no other country could interfere with it for any reason. In return, the Song lifted part of the embargo on arms exports to Xia and pledged to respect the traditional beliefs of the Tibetan people and jointly resist the subversive missionary activities of the Tianfang Sect.

After dealing with Western Xia, Lu You's energy shifted to his strategy against Nepal, a mountainous country in the south. After promising the Tibetan nobles a beautiful vision of wealth, beauty, and population to plunder southward, the murderous Tibetan cavalry, led by the Song generals, crossed the Himalayan pass and began the siege of the Nepalese mountains.

Although it was difficult for artillery and other heavy weapons to cross the rugged mountain roads and send them from distant CD or Lanzhou to Lhasa, under the blood, sweat and sacrifice of the serfs, in the first year of Shaoxi, the city of Kathman still collapsed under the sound of artillery. Since then, Lu You's elite soldiers have added another mercenary: the Gurkha Mountain Infantry.

Relying on the impact of the Gurkha mountain infantry and the Tibetan cavalry, and after being equipped with the best muskets and grenades of the Song Kingdom, Lu You formally suggested to the Privy Council that a thorough sweep of Northern Tianzhu be launched, and he hoped to be able to get the support of the Nanyang Fleet, which was likely to be easily met in Calcutta in the summer. However, after assessing the risks of this sea and land advance, the Privy Council of the Song State believed that the danger of high temperatures, epidemics, and floods might make the operation useless, so it asked Lu You to withdraw his troops from Tianzhu and "be a tiger in the mountains".

After the conquest of the snowy southwest, Lu You was called back to the mainland, where he was unanimously cheered by the four-level council and was given the glorious title of "Marquis of Dingyuan" by the emperor.

Because Lu You was already very old at this time, he was arranged by the cabinet to be reappointed as the chief doctor of the court. A year later, he was given the title of Duke of Yue Guo and Prince Shaobao, and since then he has been retired to the mountains and forests and has been living for a long time.

Lu You's experience represents the legend of the Song people of his era. He, like Ban Chao, is a scholar, but they are both famous. Although there is no such tragedy as the great battle, the bloodshed, and the corpses for thousands of miles, the expansion of civilized people and the expansion of barbarians are two completely different concepts.