It was dusk when the emperor's letter arrived in Jizhen, and under the afterglow of the setting sun, the little eunuch Zhang Whale followed the herald rider all the way.

In the lonely smoke of the sunset, follow Qi Jiguang's footsteps and cross every beacon fort.

In the seventh fort, Zhang Whale saw Qi Jiguang who was camping under the command, the prime minister of Jizhen had just begun to inspect the fort, and Qi Jiguang would patrol the border for the next half month.

"Qi Shuai, Your Majesty's will, private message."

Qi Jiguang, who saw Zhang Whale, was very surprised, this was not the first time he had seen Zhang Whale, he had seen it several times in Beijing before, but this was the first time Zhang Whale came to his border defense area, and he was surprised: "I thought that Your Majesty would pass on the message in everything, but I didn't know that the internal envoy was in person, and I missed the welcome." ”

How comfortable it was to hear these words in Zhang Whale's ears, thinking about the last time he went on an envoy, he ran so far to Xiandao, and Lin Afeng's fierce and vicious appearance scared him to death.

Look at the little king of the wilderness over there, and then look at the bearing of our important ministers in Beijing, can it be compared?

was so happy that Zhang Whale couldn't close his mouth: "Qi Dashuai is serious, this is serious!" ”

"The marshal doesn't know, although Your Majesty is eager to pass the letter on everything, but this important person, important letter, you still have to ask us slaves and maids to send it in person, you are an important minister of the court, the prime minister of Jizhen, how can you be like those idlers."

Qi Jiguang squinted and smiled, raised his hand along the Great Wall, and said, "Please, please also invite the envoy to enter and talk in detail." ”

The voice fell, and its own officers and soldiers were on alert.

In the beacon, Qi Jiajun had already placed a few books used by Qi Jiguang on the wooden frame of the beacon dun army, but there was only one futon and nothing else.

Zhang Whale said a few more words of praise, until Qi Jiguang couldn't laugh a little, and then asked: "Qi Shuai, we are here on behalf of Your Majesty, ask a few things, first of all, the previous barbarian asked for surrender for no reason, why is this?" ”

The barbarian is the Chahar Mongol, because in recent decades, the Chahar Mongol Khan was called Tumen Khan, and the Ming Dynasty was called the Tuman with his subordinates...... To tell the truth, the embarrassing division of the Ming Dynasty also existed between the border army and the interior, and the border army wanted to know more about its neighbors but was unable to; The imperial court has the ability to understand but disdain.

"Please surrender on the table?"

Qi Jiguang frowned, thought for a moment, shook his head with a smile, and said, "Which way to go?" Qi didn't know about it; However, if you want to say why they asked to surrender, I am afraid that I know a little bit or two. ”

"A few months ago, a merchant from the Cypriot tribe rushed to make feather arrows, and many forts stepped up their defense. In the month before last, the dungeon fort outside Qingshankou heard the alarm, and Jizhen mobilized troops and horses to encircle and suppress. ”

"Although they are raising soldiers, they have the intention to loot, but they can't get benefits under the dungeon, the Buddha wolf machine let go and scare it away, and the dungeon fort is locked everywhere, and before they have time to escape, they are surrounded by the car array, and they lose their way to retreat."

Zhang Whale didn't know anything about military affairs, but in order to please the little emperor of the military, some of the truths that he often knew were also understood, and he said strangely: "The Che Battalion sent troops to block the retreat of the barbarians, aren't they cavalry attacking?" ”

If you don't buy a customs general, where is the whole cavalry attacking, what can you do in front of the Great Wall built on top of the mountains?

But there is nothing wrong with the cavalry attacking, after all, a large part of the soldiers of the barbarians are indeed mounted infantry.

Qi Jiguang didn't talk deeply about this issue, he knew what the emperor wanted to hear from him, and told Zhang Whale bluntly: "The scouts discovered the enemy situation in the dungeon fort thirty miles away, and then the dun army and the chariot array stationed in the dunker galloped out from three places and surrounded it. ”

Saying that, Qi Jiguang smiled with a little sly: "We are faster than them, several soldiers and horses gather their strength to condense in one place, to seal his back road, the defenders in front of him only need to drag him for a moment, and the leader of the barbarians is like a turtle in an urn, where can he retreat?" ”

The Great Wall is not for defense, it is a large blockade built by the ancestors along the mountainous terrain, so that the already impassable area becomes a city wall, and the place where it is easy to pass is built to build a pass and plug, just like building walls, doors and windows for a house.

With walls, doors and windows, most of the time people will only enter the house through the door, although there is still a possibility of being pried open with an anti-theft door, but it is much safer after all.

Just like the pass of the Great Wall, the trade travelers and wars that have traveled to and from outside Senese for thousands of years have trampled one road after another to the pass, and also made the already impassable mountains even more inaccessible.

The mountains and jungles under the Great Wall on the outer side of the Great Wall even have tigers from time to time.

There are not many options left for the army to pass through, and similarly, on the road near the Great Wall, once the troops are besieged, there are not many options to make.

"Qi Dashuai will send the telegram cultivator outside?"

Zhang Jing listened to Qi Jiguang's words, and his first thought was that Qi Jiguang had repaired the telegram outside the Great Wall, otherwise how could the border army be faster than the enemy army?

The winning magic weapon of the nomadic horse team came and went like the wind in Jizhen and was actually caught by the car camp, who could believe this in the past?

But he didn't expect Qi Jiguang to shake his head and said: "Qi didn't think about repairing the telegram to the outside of his mouth, it was too easy to be destroyed, not to mention that it would not be beautiful if it was robbed by the enemy." ”

"Thistle uses lights."

"Lights?"

Qi Jiguang nodded and said: "Yes, the lamp, the cost is much cheaper than the telegraph, and it also saves manpower, each dungeon along the way has several small lights, and the lines are buried underground." ”

"But this lamp ......" Zhang Whale hesitated a little, he felt that he should not suspect Qi Jiguang, but he was puzzled in his heart, so he had to ask: "Although the glass lampshade in Beiyang has been much cheaper since last year, a lamp is only enough for a few days, how can it meet military needs?" ”

Qi Jiguang just smiled, raised a finger and said: "Don't say a few days, even if it is one day, it is enough for the sergeant to take one month, this lamp is not used for lighting, it is a warning." ”

"Can the envoy be in a hurry to return to his life? If Your Majesty is not in a hurry, if you stay in Jizhen for a few more days, tomorrow Qi will compile this set of military orders into a letter and submit it to Your Majesty. ”

Qi Jiguang's military intelligence transmission is nothing special, and it is not complicated at all, just use a few wires to connect the various dungeons, and then install a gear on the stone mill of the dungeon to connect with the small generator underground.

After choosing to connect the circuit corresponding to the number of enemy troops, the lights of the next dun fort will be on and off to warn, and the military information can be transmitted to the camp of Jizhen in a very short time, and the military intelligence order will be sent by telegram from the battalion to the guards of each key pass.

After this early warning system, which completed the repeated transmission of information from the forts outside the mouth, the camp of Jizhen, and the guards of the Great Wall in a quarter of an hour, even an army composed of ordinary battalions could easily outflank and encircle the enemy forces outside the mouth.

Qi Jiguang thought about it, Tumen Khan was suddenly surrounded by the Ming army from behind in the process of attacking Qingshankou, and the more he thought about the meaning of this encounter after retreating to the grassland, the more he thought about it, the more he was afraid, and finally made up his mind to surrender to the Great Tomorrow.

Zhang Whale looked surprised, nodded first, and then said: "I'm afraid that Your Majesty doesn't have to ask the slave maid to ask Qi Dashuai about the second thing, Your Majesty asked: Two years later, when the Oriental Marshal returns, can you take the land and reset the three guards?" ”

Qi Jiguang held his arm, his fingers lightly brushing his beard into deep thought.

Two years?

He thinks half a year will do.

As long as he is allowed to build dozens of more forts outside the Saiwai, and then build a base camp.

Wherever the line under the dungeon is laid, the Ming army will be invincible.