parentshiftbook Chapter 316 Strange Geographical Location (2, Please Subscribe!)
Chapter 316 Strange Geographical Location (2, Please Subscribe!)
After about an hour.
Kanglin City, on the Beacon Tower.
Zhang Yan and Guo Shan stood side by side, with a burning beacon tower in front of them!
"You mean, the Beacon Tower is actually used by Kanglin City to communicate with Li Er?"
Zhang Yan asked with some surprise.
"Beacon fire transmission is a good way of communication between cities, but how much commotion does it have to cause?"
"Within a hundred miles, as long as there is a city, you can see the beacon fire, and use this as a signal, it is impossible to keep it secret."
"I have been in charge of the military of the Tang Dynasty for many years, but I have never heard of the existence of Kanglin City, and I have never heard of the "April 37" and other northern Xinjiang cities. I have seen the signals emerging from here, so it is impossible for so many years , Kanglin City has never contacted Li Er, right?"
Zhang Yan was a little surprised.
If Kang Lincheng communicated with Li Er and used beacons to transmit signals, such important information.
Zhang Yan has been in charge of the Great Tang Dynasty Hall for so many years, but he has not received any news.
That's really a crime of dereliction of duty that I can betray myself.
BAE...
There is something else hidden in this.
"Report to Your Majesty! This Kanglin City was created by Li Er's painstaking efforts for many years, without telling His Majesty and Li Tangchaotang. He used beacons to send messages, so it is naturally impossible for him to be so simple."
Guo Shan explained patiently.
"On the way to northern Xinjiang, there is Shiping Mountain as a natural barrier. Any news that wants to pass Shiping Mountain and enter the Central Plains, the sky is the only way."
"Other than that, there is only a detour to the East, or the Western Regions. After detour to the Shiping Mountains, send it to the Central Plains.
"But in this way, not only is the speed slow and the cost is high, but it is also extremely unobtrusive, and it is extremely easy to leak the wind."
"In this case, using the smoke from the beacon fire to cross Shiping Mountain has become the most confidential method, which is fast and difficult to be discovered."
I see.
Hearing Guo Shan's explanation, Zhang Yan showed a suddenly realized expression.
Then he nodded lightly and said.
"What do you mean, if there is any urgent matter in Kanglin City, it should be reported to Chang'an as soon as possible, as long as the smoke of the wolf is burned as soon as possible, after crossing the natural danger Shiping Mountain."
"On the other side of the mountain, there are naturally other people who respond to the news, and while hiding their bodies, they send it to Chang'an City at the fastest speed to report the news?"
"In this way, the eyes and ears of the two big cities of Changguan City and Anbei City are avoided. It can also reduce the time spent on the road."
"This is indeed a reasonable arrangement."
Zhang Yan nodded and said, but suddenly, he frowned and asked again.
"However, Kanglin City is one of the most important cities in northern Xinjiang. It is not too close to Dingxiang City, Changguan City, and Anbei City, nor is it very far away. Have you not paid attention to the problem of the Beacon Tower here?"
Hearing Zhang Yan's words, a wry smile appeared on Guo Shan's face.
"Reporting to Your Majesty, you may not even think of it... This is one of the reasons why Xu Heshan and Li Er chose this place to restrict the northern border.
Guo Shan explained.
"You may not be aware that the northern border is open and flat. It is mostly grasslands that stretch as far as the eye can see, and there are few mountains and hills. Between cities, beacon fires are often used to communicate."
"However, this Kanglin City is an exception. Kanglin City is also surrounded by mountains and forests on both sides, which obscures the line of sight and is not conducive to the transmission of the beacon... From Dingxiang, looking at the two places, the beacon signal cannot be seen at all."
"Only in the direction of Shiping Mountain, the terrain is relatively flat. When the weather is clear, the beacon fire is lit, and the beacon fire here can be seen on the other side of Shiping Mountain."
"That's why Kanglin City is the only city among the many cities in northern Xinjiang that does not rely on beacons to transmit messages, but relies on envoys to transmit messages.
"To tell you the truth, it was only today that I found out for the first time that there is a beacon tower in Kanglin City."
Guo Shan's words were extremely serious.
Hearing this, Zhang Yan suddenly realized.
After making trouble for a long time, in the impression of the northern Xinjiang military, Kanglin City should not have such a strong combat effectiveness.
Even the beacon news is only useful to the Central Plains, not to the north.
Beijiang didn't even know that there was actually a beacon tower in Kanglin City?
I have to say, Li Er's move is simply brilliant!
"So, it is because Kanglin City is within the scope of the northern border and is independent from the northern perspective. It can quickly communicate with Chang'an City 4.1, and can monitor the Central Plains silently... so unique Thanks to the geographical location, Li Er was able to find it.
Even Zhang Yan couldn't help but sigh with emotion.
Great effort is seen in the subtleties.
It's just the geographical location of Conlin City, and the means of concealment.
You can see how heavy Li Er's city is.
You know, the secret.
It has been maintained for at least five years without being known by anyone!
"Not only that, Your Majesty, do you still remember what I reported to you before I entered the city?"