After the second Yangquan meeting, you entered the Beji steppe for the seventh time and returned to the northern camp again.

Liu Shen, on the other hand, returned to Yunzhou, and through a series of diplomatic operations, finally succeeded in concluding his marriage with the princesses of Rongxian and Tubo, and welcomed the two princesses into the palace of Yunzhou.

The marriage with the Rongxian and Tubo tribes further strengthened the cavalry strength of the Han army on the northern front, and the elite cavalry of the two tribes also joined your command and cooperated with the Han army to fight side by side.

The joining of the two ethnic groups has completely solved the problem of the supply of war horses for the Han army.

After Liu Shen formed an alliance with the Rongxian and Tubo tribes, trade and commerce in the north also became active. The trade routes, which had been blocked by fierce fighting between the various parties in the steppe, were partially restored, and the number of caravans from various countries on the way was increasing day by day. In the street market of Yunzhou, you can often see a variety of goods from various countries in the Western Regions.

When the Begi people controlled the steppe, they blocked the trade channel between the East and the West by force, imposed high taxes on the caravans of various countries that traveled to and from the steppe, and often plundered small and medium-sized caravans that could not pay the taxes in full.

After the alliance between the Rongxian and Tubo tribes, the Han army and its allies controlled more than two-thirds of the grassland area.

Liu Shen adopted a policy of encouraging cross-border trade, and he opened up special commodity trade markets in the Western Regions in Yunzhou and a number of cities near the north, and held a grand reception of Hu merchants in the western market of Yunzhou, which concentrated silk, spices, and other special products of the Han region, and invited merchants from all over the world to supply them at more favorable prices and transport them to the West for trade. During the reception, Liu Shen announced that merchants from various countries who came to trade with the Han people did not need to spend money on food and lodging in Yunzhou and other cities, and all caravans crossing the areas controlled by the Han army could be protected by the Han army's armed forces and did not need to pay protection taxes.

This quickly spread throughout the world, attracting a large number of caravans to abandon the area passing through the Beji people and go to the Han region to participate in the trade fairs.

The implementation of these measures brought about a blowout of the total trade between Han China and the West, and Yunzhou soon developed into an international trade center in East Asia.

The prosperity of cross-border trade brought Liu Shen a large amount of financial income, and the Northern Han Dynasty became the most economically powerful country among the surrounding countries at that time.

At the same time, the Begi people's source of revenue was dealt a heavy blow, and their monopoly on trade between the East and the West by force was completely broken.

With the rapid expansion of the scale of Yunzhou city, Liu Shen officially renamed it Yunjing.

The prototype of a new unified central dynasty has emerged.

Yunjing City is bustling and busy, you can see the clothes of various countries, hear the accents of various countries, and the momentum of the sea is inclusive, which is in stark contrast to the closure of the city.

The Han army's protection of the steppe trading caravans formed a huge political influence. After verifying the strong combat power of the Han cavalry, some small countries in the Western Regions near the Han land and the grassland tribes that had been suppressed by the Beji people for many years paid tribute to Liu Shen, asking to become Liu Shen's protectorate and ally, and to honor Liu Shen as the common "Great Khan King".