Give two examples of wars that undermined national unity in ancient China.

The examples you want to give are very unreasonable. The ancient law of survival is that the law of the jungle is the strong, what is it to undermine national unity? The ancients didn't have this concept at all.

Don't judge the ancients with the current concept, just because our national hero Yue Fei has become a sinner who undermines national unity. How sad is that!!

In ancient times, the Han Chinese and other nomadic peoples were motivated by struggle. Could it be that Emperor Wu of the Han Dynasty attacked the Xiongnu in the north in order to stabilize the northern frontier, destroying national unity?

Yue Fei went north, attacked the Jin State, and recovered the lost territory, which is also considered to destroy national unity?

So, well. I think the biggest war that undermined national unity in modern times was the War of Resistance Against Japan. China simply does not resist and allows Japan to conquer, which will destroy nothing.

That, the war of the Spring and Autumn Period and the Warring States Period counts.

After setting fire to make the land more fertile, well, the ashes left behind after burning are equivalent to a large amount of base fertilizer at a time, and if the grassland is desertified, crops should be planted on it, especially cotton, which absorbs the fertility of the land, or let the captive livestock gnaw the turf, and then as long as a few years, the land will be eroded and desertified. Now the Inner Mongolia grassland is made into sandy land in this way, and it is more scientific.

I'm going to you... But I want to say that for the northern nomads, the whole is still more and less chaotic, after all, it is land, cattle and sheep, and it is all economic income, why destroy it? Ancient emperors were not stupid.

This method you mentioned has been done in ancient times.

Environmental degradation is not good for each other, and we still have to ** when we don't fight, and it's not good for you to force the nomads out, only friendly and peaceful development can avoid war, such as the Tang Dynasty.

If you want to talk about humanitarianism, don't start a war, don't kill people, and fake mercy.

The War of Resistance Against Japanese Aggression was a just war in which the whole nation resisted the invasion of foreign enemies.

1.The largest and most fierce battle on the battlefield in North China, and also the battle in which the armies of the Kuomintang and the Communist Party cooperated and cooperated best to resist Japan was the Battle of Taierzhuang.

2.The Battle of Xinkou and Taiyuan was a general battle organized by the Second Theater of the Frontal Battlefield to defend Taiyuan after the fall of Pingjin and the beginning of the Battle of Songhu, which lasted nearly a month from October 13 to November 8, 1937. In the battle, the main force of the 115th Division and the 129th Division of the Eighth Route Army under the leadership of the Communist Party successively won the victory at Pingxingguan and the night attack on Yangmingbao, effectively cooperating with the frontal battle.

The reference to China's 56 ethnic groups was made after the founding of the People's Republic of China.

Moreover, these 56 ethnic groups are not historical and secular references, but later found many scholars to do research and some nationalization.

Moreover, many nations did not have their own problems when they reached the founding of the country, and history is even more incomprehensible.

It can only be said that exchanges are for the sake of peace, and in ancient times, peace and kinship were all for the sake of national unity.

For example, Zhaojun is out of the plug, and Princess Wencheng is in harmony.

Most of the minority ethnic groups in ancient times were mostly small countries, and there were often wars with ancient Chinese dynasties. There was little unity and friendship, and the Xiongnu invaded the Central Plains from the founding of the People's Republic of China until the Eastern Han Dynasty after Dou Gu defeated the Xiongnu and the regime collapsed. The Turks were also formally governed by the Zhou Dynasty until the reign of Wu Zetian.

The Khitan continued to invade the Central Plains until 1005, when the Northern Song Dynasty signed a contract with them and confronted them. Almost all of them invaded the Central Plains, and unity and friendship are not visible now.

The harm of war in ancient China was multifaceted: first, it caused social turmoil, the vast number of people were in dire straits, and the population was sharply reduced; Second, a long-term war will consume vital national strength and be detrimental to the stability of the country. Third, if there is an internal civil war, it will allow ethnic minorities to take advantage of the opportunity and let the country suffer from the national crisis; For example, the eight-year-long Anshi Rebellion caused social and social turmoil, and a large number of people from the north migrated to the south, which greatly reduced the social productivity of the north, which was a sign that the powerful Tang Dynasty had turned from prosperity to decline; Another example is the 16-year-long Eight Kings Rebellion (Yongjia Rebellion) of the Western Jin Dynasty, which consumed a huge amount of national strength in the Western Jin Dynasty, so that the northern ethnic minorities took advantage of the gap to enter and destroy the Western Jin Dynasty in 316 AD, making northern China fall into the hands of the Hu people. There are many such examples, and I will not give them all here!

Xing, the people suffer; Death, the people suffer. Due to the influence of Confucianism, in the war against foreign enemies, China must give comfort to those who win, and compensate them for defeat. These consolation goods and reparations ultimately come from the people and are inflicted on the people.