Lin Fei's division's military affairs office soon came to report that they had gotten some news. And this time the department that reported back was the Tianshi Like under the Military Affairs Department, and they monitored the changes in the nearby land. They are not only responsible for the mapping of the terrain, but also responsible for providing sand tables to the commanders, and even monitoring meteorological problems. It is better to say when it rains, how much it rains, and what the impact is, they have to analyze. It is also necessary to monitor changes in the land, such as changes in the terrain, as well as various land problems. Therefore, their responsibilities are still very heavy, after all, in ancient times, wars were very particular about the right time and place, and this demand for the right time and place has not been changed until later generations, so Jingwen also attaches great importance to it.

"Division Commander, we have detected that there is something wrong with the land near the city!" The geographical staff officer said.

"What's the problem?" Lin Fei asked.

The geographical staff officer immediately said: "According to Lord Jingwen, we can observe the habits of those animals to judge geographical problems. And we just happened to observe that there were quite a few earthworms crawling out of the dirt in the vicinity, as if something irritated them. So we're going to report back right away! ”

"You mean someone digging tunnels?" Jingwen asked immediately.

Of course, Jingwen knows that earthworms are generally relatively stable, unless they will crawl out of the dirt after it rains. But now it is not raining, but the earthworms have crawled out, indicating that they have been stimulated. This anomalous change was discovered by these geographical staff officers, and they paid attention to it in time, so they came to report it immediately. And Jingwen immediately realized that he was afraid that something was wrong underground, so he let the earthworm crawl out. But if there is anything wrong under the land, there should be nothing.

According to the law, earthworms crawl out of the land, and generally in addition to geological disasters, someone has dug tunnels. Or rather, earthquake preparation happened. Earthworms will also have some abnormal appearances. But at present, Jingwen thinks that there will be no earthquake, after all, the northeast is not a high-incidence area, could it be that Jingwen is so unlucky, and he encountered an earthquake in the war?

"Earthquake, not impossible! However, an average earthquake is unlikely to cause us damage. Jingwen speculated.

Although the houses in ancient times were backward, they also had the advantage that even if they were lost during an earthquake, they rarely crushed people to death. The houses in the Tang Dynasty were all wooden, and even if there was an earthquake, it could not cause much damage to humans, so Jingwen was not afraid of earthquakes. And as long as it's not a big earthquake, I'm afraid there will be no problem. Neither will the walls fall.

"Although the earthquake will not cause us any great danger, if it is a man-made disaster, it will be dangerous!" Lin Fei said.

And Jingwen also nodded and said: "Continue to monitor, take the listening urn and monitor carefully, if there is any news, then notify us immediately!" ”

The listening urn is also a kind of monitoring method in ancient times, which can be put on the ground with a listening urn, and then you can hear the call from a long distance. If there is a large number of footsteps or the sound of horses' hooves, it means that the enemy's army is not far away. And if someone digs a tunnel, it's easy to tell. Jingwen had known about this kind of thing for a long time, so he asked these staff officers to use the listening urn to monitor it.

"Yes!" Said the geographical staff officer.

Jingwen was already suspecting that this should be a Goguryeo digging tunnel, so this caused the change of these earthworms. However, Jingwen behaved like this for the Goguryeo people. Very disdainful. Because their behavior has been discovered by Jingwen, what else can they do? And Jingwen is also glad that he has come up with the so-called staff system, so that any means of this enemy cannot be hidden.

And the staff system established by Jingwen. It can speculate and analyze various aspects of the enemy, and ensure that it will not be greatly damaged by the enemy's various methods. The Goguryeo people and the Central Plains had the same combat methods in the past, and they attached great importance to the role of the commander. And the ability of the commander of an army often represents the combat effectiveness of the army. Moreover, all the work is distributed by the Lord in the future, and the usual division of labor is not appropriate. Those armies are the main generals who think of something at the moment of patting their heads, and then immediately the whole army will revolve around the main future. In fact, this kind of military management mode is very extensive and very dangerous. This management model is either a big win or a big defeat. Because of this kind of extensive management, once the master will neglect some places, and then be caught by the enemy, the defeat will be inevitable. Only a small number of cautious generals can keep the army as free of loopholes as possible, so as to keep the entire army safe.

However, Jingwen's staff system allows all kinds of staff officers to replace the chief general for actual management, so that they can make all kinds of arrangements, and the chief general will take the initiative to work even if he does not give orders, and have their own division of labor. This is completely different from the staff of other armies, and the staff is only the guest secretary of the main general, and only after the main general assigns tasks can they have actual work, and once they are not assigned, they are all idle. Therefore, the staff system is much better than that of the staff, and it can ensure that every place is as free of loopholes as possible.

Two hours later, the geographical staff officer came.

"Commander, we heard the news, and as expected, the Goguryeo people were digging tunnels. If we were expecting a good one, their tunnel entrance was behind a small hill not far away. The geographical staff officer pointed to a small hill about ten meters high in the distance.

And Jingwen looked at this small mountain bag and smiled, they actually used the small mountain bag to cover Jingwen's sight. But the eyes can deceive people, but the ears do not, and geological changes do not deceive people.

"Can you figure out where they ended up digging the tunnel?" Jingwen asked.

"Yes, we can quickly figure out the end of the tunnel." Said the geographical staff officer.

And Lin Fei immediately asked: "Jie Shuai, do you want to do the trick?" ”

"Of course, since they sent their faces to us to beat, then we don't whip them hard, then how can we be worthy of the hard work of others! Hahahaha......" Jingwen said with a laugh.

And Lin Fei felt a pity for the Goguryeo people, digging tunnels was a good method, but he actually encountered Jingwen's staff system, and the result was nowhere to hide. Now that Jingwen has come to a plan, I'm afraid it's really miserable. (To be continued......)