There were three major regrets at the end of the Qin Dynasty and the beginning of the Han Dynasty, and they were difficult to reconcile.
One regret is that the first emperor of the ages, the First Emperor, died young and ended in forty-nine. The Great Qin Dynasty was in chaos because of its strength and the second generation died; the second regret was that the overlord of Western Chu refused to cross the Yangtze River and was defeated once in his life.
Unable to do so, Liu Bang personally conquered the Huns, but left a big mystery behind.
The year after Gaixia defeated Xiang Yu, Liu Bang was trapped by the Huns at Baishan Mountain. There are different opinions on how the siege of Baishan Mountain was solved, and there are few official historical records. The more generally accepted theory is that Chen Ping bribed Shanyu Yan with a large amount of money, and relied on Yan to blow pillows in Maodun's ears in exchange for the Xiongnu army to open up and let Liu Bang go.
Upon careful consideration, this statement is full of loopholes...
