In the early morning over the capital, with a little cold wind, the morning mist was blown away, and a ray of morning sun fell on the city gate tower, bringing a wisp of vitality to the ancient capital.

"Changing the Guard!" A low voice woke up the soldiers who had been guarding all night and were a little tired, and a group of repaired and energetic soldiers walked up to the city to replace the robes of the vigil.

Among them, there are people and horses from the Beijing Battalion, the Yongwei Battalion, the Factory Guard, and the Five Cities Soldiers and Horses, who are on duty each other.

On the streets, the soldiers were in armor, carrying swords and spears in their hands, standing in the alleys and alleys, guarding their duties.

Lu Xiangsheng and Yang Sichang, wearing crimson second-grade court clothes, walked in the heavily guarded inner city on the road to the palace.

"The wind is rumoring that the grass and trees are all soldiers, I don't know when it will be?"

Lu Xiangsheng frowned, seeing a large number of factory guards mixed among the soldiers, he said with some displeasure.

As a civil official, even Lu Xiangsheng, who is loyal and righteous, has no good impression of the factory guard.

"I don't know, then it depends on what Your Majesty means? Or rather, it depends on when the factory guard finds out the fine work mixed in the capital? ”

After a night of communication, he basically understood Emperor Chongzhen's intentions, and Yang Sichang was not so wary of Lu Xiangsheng.

Because of this, some things are said bluntly.

Moreover, Lu Xiangsheng, the governor of the world, has the authority to know this.

"The population of the capital is more than one million, plus the people fleeing around Gyeonggi, the arowana is mixed, I'm afraid it's not so easy?"

Lu Xiangsheng sighed and shook his head, not holding out any hope at all.

A high-ranking general like him naturally knew that Jiannu had an absolute advantage in the use of the Ming Dynasty.

Although he didn't understand that the Jin merchants were involved, Lu Xiangsheng knew that there were millions of Ming people in Liaodong, as well as a large number of Ming soldiers who had surrendered over the years.

They don't need to dress up, as long as they perform in their true colors and blend in with the fleeing people, they are proper Ming people.

As for checking household registration or something, it doesn't have much effect.

You know, now is a time of war, how can it be so easy to find evidence?

"Your Majesty has a deep meaning."

Yang Sichang is in the center, and he is also the secretary of the military department, and he knows more information than Lu Xiangsheng.

He approached Lu Xiangsheng, his eyes wandered, and he found that there was no one, so he whispered: "Jiandou, Your Majesty is very touched by the matter of Dongyu's use of space.

Think about it, if you don't get rid of the fine work, how will this battle be fought?

Not to mention the future, let's just say that at present, the Tartars invaded the south in two ways, left and right, broke through the wall ridge and Qingshankou in a few days, joined Tongzhou, and swept the suburbs of Beijing.

If the attack is transposed, and you lead the army, how many days do you need to break through the Ming defense line? ”

When Lu Xiangsheng heard this, his body shook, his footsteps stopped, and the topographic maps of Qiangziling and Qingshankou immediately appeared in his mind.

Qiangziling is located eighty miles east of Miyun in the capital, and is the last natural barrier to guard the Jingshi.

Build a stone city on the ridge, the city is two zhang five feet high, one zhang three feet wide, the city tower is a brick and stone structure, it is extremely solid.

There is a beacon tower on the top of the mountain two miles before the pass, and you can see the enemy dozens of miles away, and if there is an enemy situation, you can immediately light the wolf smoke and send a signal.

And Aoyamaguchi is more or less the same.

In other words, there is no possibility of surprise attacks in these two places, so they can only do it hard.

Lu Xiangsheng thought to himself that under the condition that the siege equipment was sufficient, and there were no reinforcements in these two places, if he didn't care about life and death, he might be able to win a crushing victory in a month.

But that's not true.

The terrain of the wall ridge and Qingshankou is precipitous, and the Tatar army spares the Guanning defense line and rushes for thousands of miles through the grassland, and it is impossible to have large-scale siege equipment.

Returning 10,000, even if there is, it cannot be used in Qiangziling and Qingshankou.

PS: I'm late to go home, this chapter is not finished, make up for it in an hour, Zhuqing refreshes, I'm sorry, it's the end of the year, and there are a lot of things......