At the beginning of the yuan dynasty, the army was all-powerful and thunderous, and no army in the world could stop it. At the end of the yuan dynasty, it was vulnerable. Although Zhu Yuanzhang experienced eight northern expeditions. However, basically Yuan Jun is no match for Zhu Yuanzhang. Then, when the Mongolian army faced Zhu Yuanzhang's peasant uprising army, why was it vulnerable? There are mainly the following reasons.

First, the Yuan Army itself has decayed, and its fighting capacity is very limited.

Mongolian army lives on Mongolian grassland. In the early days of the Mongolian Empire and the Yuan Dynasty, the Mongolian army was invincible for at least two reasons:

First, this army grew up on the grassland. They learned to ride and shoot on the grassland and had a natural affinity for horses and bows. It is equivalent to Brazilian football. Their children have been used to playing football since childhood, playing on the beach and playing in the street.

Second, this army has been trained in actual combat. From the rise of Genghis Khan to the establishment of the Yuan Empire, the Mongolian army has almost been launching major battles. These major battles not only enabled the Mongolian army to lay the largest territory in the world, but also allowed their troops to exercise on the battlefield.

However, after the establishment of the Yuan Empire, the Mongolian army left the soil on which it lived. Under the comfortable climate and rich material conditions in the Central Plains and the south of the Yangtze River, the Mongolian army grew up in such an environment, no different from the ordinary Han army. And because of their superior sense of superiority, they are even less enterprising, so their combat effectiveness has dropped sharply, which can be said to be worse than the regular army of the Han Dynasty.

Second, the internal contradictions in the imperial court were sharp and the command system was chaotic.

At the end of the Yuan Dynasty, the imperial court of the Yuan Dynasty was very decadent and the internal contradictions were very sharp. First of all, the prime minister messed up the government, closed down and cancelled the imperial examinations, and tried to kill all five Han Chinese, Zhang, Wang, Liu, Li and Zhao. Later, Yuan Shundi teamed up with Tuotuo, Bo Yan's nephew, killed Bo Yan, and Tuotuo became prime minister. After Tuotuo became prime minister, in order to solve the world famine and various social contradictions, he distributed paper money indiscriminately, causing chaos in the world, and at the same time wanted to be a powerful minister. As a result, Yuan Shundi took off his mask again and killed him.

Then, the magical queen of Yuan Shundi joined hands with the prince to try to overthrow Yuan Shundi and make the prince emperor. The prince failed to escape, but since then, the whole Yuan Dynasty has formed two centers, the prince and the emperor, and several commanders. It can be said that the Yuan Dynasty was chaotic and decadent at the highest level, and the command system was disordered. When fighting against Zhu Yuanzhang's army, the troops were severely dispersed.

Third, the main force of the Yuan Dynasty has collapsed, relying on the support of local landlords.

Before Zhu Yuanzhang's Northern Expedition, the Liu Futong Red Scarf Army and Zhang Shicheng's army in the north dealt a heavy blow to the Yuan Army. Because the Yuan Army was defeated by the Red Scarf Army many times. Later, the Prime Minister Tuotuo organized a million-strong army to fight a decisive battle with Zhang Shicheng and besieged Zhang Shicheng. Zhang Shicheng was about to surrender. However, Yuan Shundi was afraid of becoming bigger and bigger, so he relieved him of his military power. As a result, the million-strong army suddenly dispersed.

Later, the Yuan Dynasty basically had no main force, so it had to rely on Wang Baobao, Li Siqi and other places to fight against the Red Scarf Army and Zhu Yuanzhang's Northern Expeditionary Army. But these places are armed, not United, and often fight and attack each other. In addition, they are under the command of many central leaders, and their combat effectiveness is extremely limited.

Fourth, after Zhu Yuanzhang unified the south, his fighting capacity was very strong.

The Yuan Dynasty's ability to control the south was very weak. After the chaos in the world, they soon lost control of the south. The south has become a battlefield for local governors and soldiers to compete with each other. Later, Zhu Yuanzhang gradually defeated people from all walks of life, especially after the elimination of Chen Youliang, and basically realized the reunification of the South.

At that time, Zhu Yuanzhang had established the Ming Dynasty, and Mazhuang had a strong army and strong fighting capacity. At this time, Zhu Yuanzhang issued an anti-yuan campaign with the slogan of expelling aliens, which made his battle full of justice in the eyes of ordinary people and gained wide recognition and support. Therefore, in the state of change, the Yuan Dynasty was naturally no match for Zhu Yuanzhang.