In the same year, Wu Sangui surrendered to the Qing Dynasty, and the Qing army officially entered the customs.

The remnants of the Ming Dynasty also fled to Nanjing, another capital of the Ming Dynasty, and supported Zhu Yousong, the axe king, as emperor, and established the Hong Guang regime in Nanming.

Before the establishment of the Hong Guang regime, it faced an extremely complicated and changeable external situation. After it was barely established, due to its limited strength and the continuation of party struggle in the late Ming Dynasty, internal disputes were very serious. If Hong Guang regime wants to survive in this complicated and dangerous troubled times, it must have a set of ingenious strategies, especially for the Qing army and the peasant army.

So the strategy of using Lupingkou came into being.

The Hong Guang regime's strategy of "taking advantage of the situation and pacifying the enemy" has been criticized by countless experts, scholars and historians. Actually, this strategy is really stupid.

The so-called strategy of Hong Guang regime in Nanming Dynasty is to make peace with the Qing Dynasty, use the power of the Qing army to pacify the so-called "thief" Li Zicheng in the eyes of the Ming Dynasty, and then choose whether to fight or make peace with the Qing Dynasty according to the actual situation.

Important ministers in the Hong Guang regime, whether loyal or treacherous, boastful or down-to-earth "incorruptible", all agree with this strategy. Shi Kefa, Liu, Liu, Liu and others voted in favor of a certain strategy for the first time and possibly for the last time.

Why is this happening?

It should be said that the emergence of this strategy is the helpless result of the superposition of many factors.

Although some officials of the Hong Guang regime in Nanming escaped from Beijing, most of them were not senior officials, and they all fled before Li Zicheng attacked Beijing.

This led the monarchs and ministers of the Hong Guang regime to completely discredit what happened in the north, especially in Beijing.

Wu Sangui colluded with Dourgen and led the Qing army into the customs, and all kinds of gossip about defeating Li Zicheng were flying all over the sky.

Because Emperor Chongzhen did make an imperial edict before his death, Wu Sangui led Ning Guan fighters to work for him.

So at that time, the whole country was rumored that Wu Sangui, the general of Daming, defeated the peasant army in Li Zicheng and recovered Beijing. Even many places thought that Wu Sangui was Prince Chongzhen who returned to Beijing as the heir to the throne.

The top officials of Hong Guang regime only thought that Wu Sangui and the Qing army had defeated Li Zicheng, a rogue who killed your father Emperor Chongzhen, but they didn't know that Wu Sangui had actually surrendered to the Qing Dynasty.

They generally believed that Wu Sangui was loyal to the imperial court and had an alliance relationship with the Qing Dynasty, not a subordinate relationship. They took it for granted that Wu Sangui was interested in the Ming Dynasty, and Nanming could make friends with the Qing Dynasty through the relationship with Wu Sangui, so that this group of barbarians outside the customs could be used by us.

Since Li Zicheng defeated Sun Chuanting, the last pillar country of the Ming Dynasty in the 16th year of Chongzhen (1643), its prestige has greatly increased. Later, all the way to the siege, the strength is getting stronger and stronger. In the seventeenth year of Chongzhen (1644), he was the real number one enemy of the Ming Dynasty.

Li Zicheng's peasant army is powerful and has captured Beijing. It is believed that Li Zicheng's next step is to pacify the north, and when the north is pacified, Nanming will be a fish under Li Zicheng's sword.

In particular, Li Zicheng deployed 70,000 troops in Jingxiang area, and the commander in chief was White King, a general of the peasant army. Zuo Liangyu's hundreds of thousands of troops couldn't help it, and fled all the way to the territory of the Hong Guang regime, asking the Hong Guang regime to take them in, which made the officials of the Hong Guang regime in Nanjing deeply feel the great threat from the middle and upper reaches of the Yangtze River.

Now that Li Zicheng, the "thief", has suffered a crushing defeat, it is natural for Li Zicheng to concentrate on the southern region, which really relieved the Hong Guang regime.

At that time, many officials of Hong Guang regime, including many officials with strategic vision, believed that Dashun was a menace to the Ming Dynasty, and Qing was a frontier disaster that had not been solved for decades in the Ming Dynasty. Both sides have strong strength. In order to compete for the north, it is estimated that the winner will be won in less than ten years and decades. They have been in a stalemate for a long time in the north. If both sides don't lose, the final result is that the loser has nothing.

Therefore, the Hong Guang regime is happy to sit quietly and watch the tigers fight, hoping to have time to rectify the court and take advantage of the fishermen.

But no one expected that Li Zicheng frequently made strategic mistakes and perished in just over a year, while the Qing Dynasty was so powerful when the little emperor succeeded to the throne and the power fell to Regent Dourgen.

Since the Qing Taizu Nuerhachi started the war, the Ming Dynasty has always lost more than won. Especially after Yuan Chonghuan was killed in Chongzhen, the army of the Eight Banners of the Later Jin Dynasty repeatedly bypassed Shanhaiguan and plundered Hebei, Shandong and other places, which gave the Ming officials a great psychological shock.

But at the same time, Nuerhachi's status as a "Nuzhen" and the title of "Houjin" given to his country also made Ming officials feel that the Nuzhen of Manchu Dynasty, like the historical Jin State, did not want to enter the Central Plains and establish the world, but was just greedy for money, and the Eight Banners Army of Houjin would automatically withdraw when it was burned and looted in the north.

After several decades, the Eight Banners Army in the late Jin Dynasty could not even break through Shanhaiguan, which strengthened the views of Ming officials.

Besides, even if all the people in Manchuria are soldiers, there are only tens of thousands of troops at most, and it is difficult to attack the north. Attacking the south will only become an indigestion Jin Jun in history, but the peasant army in Li Zicheng is different. It is possible to attack south at any time and place, so the Hong Guang regime, the monarch and his subjects, combined with the Qing army, can understand the strategy of dealing with the peasant army.

It's just that officials of the Hong Guang regime don't know what the real purpose of Huang Taiji's changing "late Jin" to "Qing" is. It is necessary to know that Ming is fire, Qing is water, and the ancient five elements are like fire, which is enough to prove the ambition of the Qing Dynasty.

The Hong Guang regime in the south of the Ming Dynasty did not inherit any advantages of the Ming Dynasty, but inherited many shortcomings of the late Ming Dynasty, especially the fatal shortcoming-party struggle.

The remnants of Lindong Party and Yen Party in the civil service group continued to fight against differences and infighting, and even military commanders began to be greatly influenced, and began to stand on their own feet, disobey orders, form alliances with civil servants, and even several major buffer regions fought against each other.

Alex Gao attacked Huang Degong, and after Alex Gao's death, Huang Degong attacked the remnants of Alex Gao; Li Zeqing first made friends with Lindong Party, then became a "blessing department" and turned against Lindong Party. Zuo Liangyu befriended Lin Dong, and for the benefit, he directly launched the "Jun Qing side", with the slogan of clearing Ma Shiying, and fought against the court of Hong Guang regime. In order to defend Zuo Liangyu, Ma Shiying decided to deal with the upper reaches of Zuo Liangyu as a top priority, regardless of the attack of the Qing army.

Therefore, it can be said that the only feasible strategy of the regime is to "use Lu to pacify the bandits."