What are the ancient Vietnamese books plundered by the Ming Dynasty?

In fact, as early as the Qin Shihuang period, Vietnam set up counties to rule. After the demise of the Qin Dynasty, an official of the Qin Dynasty called Zhao Tuo to stand on his own feet as king, and divided Guangdong and Guangxi into northern Vietnam, with Yuexiu District as the capital (now you know why houses in Yuexiu District are so expensive).

At the end of the Eastern Han Dynasty, the Tr?ng sisters rebelled again, and Ma Yuan led the army to counter the rebellion, and wrote a letter on the border? Is the copper column broken and crossed? Warn people not to jump too much, and don't say they didn't predict it.

However, the cost of the Central Plains dynasty ruling Vietnam was too high. Not to mention the hinterland, especially like rebellion, but also fighting internally. Send troops to fight it. Rough terrain, dense rainforest, hot climate and miasma. Soldiers generally can't stand this hot and humid climate, and there may be more people dying of illness than those killed in battle. Don't send troops to hit it, jump up and down, and repeatedly violate the border. The central dynasty was unwilling to give up such a piece of land, so during the more than 1000 years from the Qin Dynasty to the Ming Dynasty, there were many rebellions, and the Central Plains dynasty could do nothing about it.

Then why did Judy recruit 800,000 troops to attack Annan after the establishment of the Ming Dynasty? Is it really necessary to be so exciting in a tiny place? Listen to me for you:

The reasons for the conquest of Annan in the early Ming Dynasty are complicated, including sudden and inevitable factors and Judy's personal personality factors, which are the result of long-term border contradictions. Specifically, there are several reasons.

From the Qin and Han Dynasties to the end of Yuan Dynasty and the beginning of Ming Dynasty, Annan gradually unified North Vietnam and invaded the border areas of China many times, occupying most counties and counties in Yunnan and Guangxi. By the early Ming Dynasty, the world would be settled. Emperor Zhu Yuanzhang told Annan that he would return the land of the five counties of Tusi in Siming, which he occupied at the end of Yuan Dynasty, but Annan refused.

The sophistry of China Land Atlas is not credible, but it is unwilling to spit out benefits. What made the Ming Dynasty feel even more humiliated was that Annan pretended to return the occupied land, but secretly further expanded the war, killing local Ming court officials and taking away the young labor force. The contradiction between Ming Dynasty and Annan deepened further. While tolerating Annan again and again, the rulers of the Ming Dynasty secretly planted the seeds of hatred.