From today's geographical name, Gao Yuan they are indeed guarding Yuguan, and they are also related to the city, but this Yuguan is not the future Shanhaiguan, although Shanhaiguan is also called Yuguan.

If you take the Yuguan and Shanhaiguan in later generations as the Yuguan in this era, it is estimated that you will be wrong. The term Yuguan has existed in history since the Sui and Tang dynasties, but until the Ming Dynasty in later generations, the vicissitudes of life for so many years will definitely not refer to a certain Guancheng alone.

The Yuguan mentioned in history should be a large area centered on Yuguan City, with the sea in the south, the mountains in the north, Shanhaiguan in the east, and Qinglongdu Mountain in the northwest, not just Yuguan City in front of you. With the mountains to the north and the sea to the south, building Guguan Castle in this area will naturally achieve twice the result with half the effort.

In the later Ming Dynasty, Xu Da was ordered to build the Guancheng, so he abandoned the Yuguan in Funing County, and chose the Shanhaiguan 60 miles northeast of the old Yuguan City, because the terrain there was more dangerous and could only be attacked from the Guancheng of Shanhaiguan. And now the Yuguan City in front of us, there are only rivers and mountains on both sides, and there is no city wall of the Great Wall, and the left and right fronts that need to be defended are too long, far from reaching the point where one man is the one who can't open it.

"Let's go back to the city." Zhou Nan, who had watched it for a long time, said to Gao Yuan and Yang Keshi.

"Back to the city?!" Gao Yuan exclaimed, "Brother Fu's revenge is not avenged? These gold thieves have been killed at their doorstep, so Da Lang doesn't want to kill them? ”

"Yes!" Zhou Nantou said without looking back, "Let's go back and talk about it - when will these golden people come to attack Guancheng?" ”

"In less than two days, I'm going to come and make a show." Yang Keshi said.

"I just arrived today, don't you two want to invite me to drink?" Zhou Nan still didn't talk about repelling the Jin people, and talked about it.

Gao Yuan, who was most familiar with Zhou Nan, was the first to say: "Drink!" Drink! I've been holding back for many days, and when Dalang comes back today, he will definitely have a good drink! ”

Yang Keshi looked at the two strangely, but he didn't ask much, and the three of them returned to the Yuguan City General's Mansion from the city wall with the guards. Li Feixing of Zhou Nan and the others had already arranged their accommodation by the defenders in the city. Zhou Nanze, Gao Yuan, and Yang Keshi came to the inner courtyard.

"Da Lang, just talk about it quickly! lest you be sick. Gao Yuan said impatiently as soon as he entered the inner courtyard.

"Then it depends on whether you want to kill the Jin people, or to surround and annihilate the Jin people, or to teach the Jin people a lesson." Zhou Nan said unhurriedly.

Gao Yuanzheng arranged for the pro-army to set up the tables and chairs, and let Zhou Nan sit on the top, he and Yang Keshi sat down on both sides, and his guards moved several dishes and wines in one go.

"Da Lang is saying that this Yuguan City is wrong?" Yang Keshi was keenly aware of what Zhou Nan said before returning to the city just now, and now he heard Zhou Nan say how to deal with the Jin people, and asked thoughtfully in his heart.

"Brother Yang asked well." Zhou Nan took a sip of the teacup, and then said: "If I guess correctly, the terrain of Yuguan City, where we are now, is far less dangerous than the location between a mountain and a sea in the northeast. The narrowest part between the mountains and the sea there, only four or five miles apart, is much easier to defend than here. ”

"Only four or five miles apart?" Gao Yuan asked in disbelief, "Isn't that just a south wall in Sanssouci Village?" ”

"Exactly." Zhou Nan continued, "That is the key to the future. If you can take it, you only need a defender, and you can easily hold the city; If that place is taken by the Jinren, it will be like the city gate is in the hands of someone else, and it will be opened and closed if it is closed, and it will not be able to help itself. ”

"Naturally, we have to take that key place first!" Gao Yuan slammed his fist on the table, shaking the dishes on the table to jump, "I just don't know if it's as Da Lang said?" ”

"In the past, Brother Gao and I also attacked the Jinren camp, and we have never seen any narrow mountains and seas for only a few miles!" Yang Keshi said to Zhou Nan suspiciously.

"The Central Plains has relied on Yuguan to defend against the Fan tribe for more than hundreds of years. It's not easy to choose to be a Sekijo here. That golden man can't read a word, as if he hasn't grown up, just a simple-minded person, how can he know how to choose a place to defend? ”

Zhou Nan couldn't help sneering in his heart, if any person could find or discover the mountain and sea defense places discovered by Xu Da, the founding general of the Ming Dynasty, then Xu Da's name would be too simple.

"Only by driving away these golden men in front of you can we take that important place; From that critical place, along the passage between the mountains and the sea, there are three or four hundred miles, twenty miles wide, and a few miles narrow, and you can reach the lair of the golden people. Brother Gao, Brother Yang, what do you say? ”

"Then you don't need to ask, naturally you have to take down the important thing you said first." Yang Keshi replied immediately.

"According to what Da Lang said, as long as we take that important place, the gate of the golden man will be in our hands." Gao Yuan also said excitedly.

"Exactly." Zhou Nan nodded, but he really didn't know the bottom in his heart, because he hadn't seen what Shanhaiguan was like today. The Shanhaiguan in later generations, from the foot of the mountain to the seaside, that is, seven or eight miles, but in the interval of a thousand years, the coastline must be farther and farther away, and the sea level is gradually receding, otherwise it will not form the Tianjin Weilai of later generations. That's why Zhou Nancai described the terrain of Shanhaiguan as narrower than he imagined.

"You haven't been here before, how can you know the terrain changes in the first three or four hundred miles?" Yang Keshi suddenly asked suspiciously.

"Da Lang is a gift from God, and he is naturally different from ordinary people." Gao Yuan said disappreciatively, "Exploding arrows and flying cars, have you ever seen Brother Yang before?" Don't talk about the terrain in front of you. ”

"I can only blame Tong Xuanfu and Jin Ren for their bad luck and ran into the evil star of Dalang." Yang Keshi couldn't refute Gao Yuan's words, so he had to shake his head and feel sorry for Tong Guan and Jin Ren.

"At present, Tao Gu and Shi Yue have led 30,000 new troops, and they have recovered the states and counties of Ping, Ying, and Luan, so they don't have to worry about being attacked before and after." Zhou Nan thought about it and said. "The Jin army in front of me was originally 20,000 horses, but now it is ......"

"After many battles now, there are only about 15,000 people left." Yang Keshi hurriedly introduced to Zhou Nan.

This amount was about the same as Zhou Nan's original guess, so he continued: "Since the Jin people want to kill in, we will let the Jin people in, and the more they are introduced, the better." ”

Gao Yuan was startled and said, "Then the Jieshi Pass behind Yuguan City needs to ambush more manpower in case the Jin people really rush in." ”

"You don't have to defend the Jieshi Pass, just give it to the Jin people." Zhou Nan said indifferently.

"After the Jieshi Pass, it's just a flat river, if you let the Jin people in, it's not easy to clean up." Even Yang Keshi, who has always been thick and fine, persuaded him.

Zhou Nan still shook his head, "Even if I put it in, I'm just afraid that there will be fewer of these golden people, so I'm sorry for this arrangement." ”