There are many reasons why Chu Qiaochuan Yan Xun abandoned the United States to join the army, and there are two keys. The first one is because American troops are traitors. First to Yanbei, then to Dawei. Such an army has never been credible to any king, and it is impossible for an expert to trust these two betrayed armies easily because of a few words, because no one knows what the next betrayal will be. Another reason is time. It takes time for Xun Yan to flee to Chang 'an, and blocking the pursuer with a beautiful army can not only destroy this once traitor army, but also win enough escape time for himself and others, killing two birds with one stone. Xun Yan won't miss such a thing!

When American troops were about to be wiped out, Chu Qiao rode across the bridge of fire to come to the rescue. As he appeared at a critical moment, he shouted to Yanbei not to give up on them. Chu Qiao came to take them home, and with the help of Chu Qiao, all the Americans finally escaped from danger. However, due to Chu Qiao's departure on the road, all the Americans were afraid to go back to Yanbei, so they only wandered around Yanbei until they met Chu Qiao, who returned to Yanbei, and they really set foot on the land of Yanbei.