In the spring of 609, Yang Guang prepared for his second tour of the west. The last trip to the west was unsuccessful because of the Goguryeo issue, and as a conceited emperor, this was unacceptable to Yang Guang.

Moreover, as the boss of the Western Regions, Tugu Hun was ready to move, often harassing Hexi, so the Silk Road was not smooth, and the caravans gradually decreased.

This time on the western tour, the scale of the team is even larger, and the harem is almost empty. The beauties of the harem were mostly born in the Central Plains, and they had never experienced the beauty of the Western Regions, and they heard the concubines who accompanied the emperor on a tour last time describe the grassland scene, which aroused a lot of yearning. In view of the success of the last western tour, Yang Guang was very angry to bring almost all the harem beauties who could go, there were as many as seven or eight hundred people, not counting the number of ordinary palace maids.

Because of the large number of concubines accompanying him this time, Yang Guang ordered the government offices along the way to prepare for the drive. When everything was ready, Yang Guang, under the protection of an army of 100,000 people, started the second western tour with a sightseeing group of 1,000 people.

This time, it still passed through Chang'an, passed through Baoji, Tianshui, Dingxi, Lanzhou and finally arrived at Zhangye, which was also the road to Xinjiang in later generations.

After arriving in Qinghai, Yang Guang issued an edict and ordered the king of Tuyuhun to come to meet him.

Murong Shun, the king of Tuyuhun, had already heard of Yang Guang's tyranny, coupled with the attack on the Hexi Corridor in recent years, he was afraid of being beheaded by Yang Guang, so he did not dare to answer the call.

Hearing that the Sui army was coming, Murong Shun gathered 200,000 troops from various tribes to meet the enemy.

The two armies met in the Jinyintan grassland, which opened the prelude to the decisive battle, because the Tuyuhun troops were afraid of the Sui army, coupled with the difference in weapons, the Tuyuhun army was defeated at the first touch, and finally Murong Shun fled, and came to Hu'er to capture more than 100,000 prisoners, and the Tuyuhun area of more than 100,000 square kilometers was included in the territory of the Great Sui.

Yang Guang, who was sitting in Lanzhou, received a front-line battle report and was summoning hundreds of officials: "Tugu is vulnerable, and now it is defeated, and in the next few decades, the Western Regions can be guaranteed without worry." ”

Yu Wenmou played: "Your Majesty is mighty, and you will surrender wherever you go, and I wish Your Majesty a long life." ”

Yang Guang was very proud, but Prime Minister Su Wei said: "Your Majesty, now that Tuyuhun has been defeated, you should order Laihu'er to continue to lead the army to pursue, and destroy Tuyuhun forever." ”

Yang Guang said impatiently: "What the prime minister said is true, but Murong Shun's kid hid in the mountains and didn't come out, for the sake of barren land, it is really not cost-effective to mobilize the people, with this lesson, forgive him and dare not make a mistake, the purpose of this western tour has been achieved, there is no need to chase and fight indiscriminately." ”

Su Wei was overjoyed when he saw the emperor's small victory, and shook his head helplessly, Tuyuhun was far away from the Central Plains, and if it was not completely destroyed, he would still come back after the army was pulled, but the emperor did not allow it, so he had to retreat.

Won a big victory, came to Hu'er to lead the army back, Yang Guang held a banquet in Lanzhou, drunk and dreamed of death for more than a month, the Manchu Dynasty civil and military thought that the emperor would return to Luoyang, but a concubine in the harem was in Zhangye, begging the emperor to allow him to go home to visit relatives, Yang Guang thought that there was not much distance, so he ordered the army to continue westward and go to Zhangye.

This move was opposed by many ministers, Zhangye was very close to the Western Regions, far from the interior, and it was difficult to supply, for the safety of the army, they all advised Yang Guang not to continue to advance westward.

Yang Guangdao: "Zhangye is the throat of the place, precisely because it is very close to the 36 countries of the Western Regions, you can convene a meeting of the kings of various countries nearby, bring a big victory to deter Xiaoxiao, and ensure the safety of the Silk Road. ”

As a last resort, on the one hand, the grain Daolanzhou was mobilized from Longyou, and on the other hand, the Lanzhou Thorn Shi was ordered to go all over the country to raise grain and grass for the army, and the people's resentment boiled for a while. In August of the same year, after the materials were prepared, Yang Guang led the army to continue westward.

When the army marched to the mouth of Biandu, which was more than 100 miles away from Zhangye, an official from the Qin Tianjian said: "Your Majesty, the ministers watch the sky at night, and there will be heavy snow in the near future, so please prepare early." ”

At this time, it was summer, and some people actually said that it was going to snow, Yang Guang was angry, because the ancient texts had recorded that only when the faint king was in power, the sky would be chaotic, and it would snow in August.

After the delay, it was getting late, Yang Guang had to order to camp on the spot, and ordered someone to find the local people to ask if there was snow in August.

There is a lesson from the past, and the official who went to find someone took the lead in explaining the people who came to him, and said: "When you see Your Majesty, don't talk nonsense, if Your Majesty asks if it snows in August, you will say that it has never been, if you dare to talk nonsense, be careful of your family's life." ”

The people were afraid of the officials like tigers, and they could withstand the intimidation, Yang Guang got the answer he wanted, so he let him withdraw from the reward, and Yang Guang feasted the ministers that night.

The originally hot weather, who would have thought that at night, the weather plummeted, as the officials of the Qin Tianjian played a cold wind, heavy snow, the temperature suddenly dropped to more than ten degrees below zero, Yang Guangjunchen and others, who had never experienced such a severe cold, were dumbfounded all of a sudden.

Yang Guang ordered to cut down trees on the spot for wages, but anyone who has been to Zhangye knows that there are so many trees in the Gobi where Zhangye is located. The crowd who couldn't bear the cold suddenly messed up, and lit all combustible things such as tents and bedding to keep warm, but the cold night was long, and after one night, thirty or forty thousand people actually froze to death, and many concubines were dressed in light clothes, even if the palace maid's clothes were taken off, they could not resist the severe cold, and eight or nine out of ten people froze to death.

The next day, Yang Guang ordered the army to march to Zhangye at full speed, and sent people to Zhangye to order the defenders to prepare warm clothes for the army. After walking more than 100 miles, the personnel lost another 50,000 or 60,000 people, and the team of nearly 110,000 people arrived in Zhangye, and only more than 10,000 people remained.

Yang Guangda was furious, and divided all the officials of Qin Tianjian into five horses, and ordered the countries of the Western Regions to pay tribute to a large number of gold, silver, treasures, and beauties to comfort the surviving army.

When the countries of the Western Regions received the order, they dared not speak out, because the army was damaged, Yang Guang ordered the news to be tightly sealed, and it was still claimed to be 100,000 to the outside world. Forced by the military might of the Great Sui, the countries of the Western Regions brought beauties and treasures to Zhangye Miansheng.

Seeing that he gave an order and all countries surrendered, Yang Guang's lost heart was comforted, so he held a banquet for a month to entertain kings and merchants from all walks of life.

In November of the same year, Yang Guang led the rest of the men and horses back to Luoyang, but the news that the army was frozen to death was still reported, and the world was in an uproar for a while.