Yang Ke stood in the Tongguan City Tower, looking at the handover of heaven and earth in front of the pass, and couldn't help but sigh with emotion: "In the sixteenth year of Jian'an in the Eastern Han Dynasty, Cao Cao ordered Cao Ren, the general of Anxi, to lead a force from Luoyang to the west, forcing Tongguan, and the wall was not fighting. In July, Cao Cao's pro-unified army set out from Ye and entered the north bank www.biquge.info of the Yellow River in Tongguan, where it confronted Ma Chao's army. In August, Cao Cao in order to make Ma Chao, Han Sui coalition army have a delusion, wave the army south to cross the Yellow River, feint Tongguan, lure the generals in the pass to gather, attract the main force of the coalition army, take advantage of the emptiness in the north of the Wei River, secretly sent the general Xu Huang, Zhu Ling to lead more than 4,000 people to ride on foot, from Pubanjin to smuggle across the Yellow River, set up camp in Hexi, leap August, Cao Jun suddenly crossed the Yellow River from the northeast of Tongguan, when Ma Chaojun found out, Ma Chao led more than 10,000 people to pursue, Cao Jun was in a very critical situation. Cao Cao's subordinate lieutenant Ding Fei released a large number of cattle and horses to disturb Ma Chao's army. Ma Chao's army scrambled for cattle and horses, and Cao Cao safely crossed back to the Yellow River under the cover of the guard general Xu Chu. After Cao Jun crossed back to the north of the Yellow River, he crossed the Yellow River from Puban West to join Xu Huang and Zhu Lingjun. Then the car was erected and a passage was built to cover the troops to go south and reach Weikou. In this way, the natural danger of Tongguan was ineffective, and the main force of the coalition army was forced to move to the south bank of Weikou to deploy defenses and confront Cao's army. At this time, the weather was already cold, Cao Cao used Lou Gui's strategy, crossed the Weishui at night, gathered sand and irrigated water, froze ice overnight, set up a pontoon bridge, and Cao's army all crossed to the south of the Wei River. Cao Cao expected that Ma Chao would come to attack the camp at night, so he set up an ambush and defeated Ma Chao's army. Ma Chao was frustrated and proposed a peace condition for the river as the boundary, but Cao Cao refused. Ma Chao came to challenge many times, but Cao Cao couldn't hold out, so Ma Chao wanted to win quickly, and once again put forward the request of demarcating the land as a boundary. At this time, Cao Cao adopted the strategy of the strategist Jia Xu, ostensibly pretending to agree and paralyze the other party, but in fact he actively prepared and waited for an opportunity to march. Cao Cao took advantage of his past friendship with Han Sui to deliberately catch up with him in front of the two armies, and deliberately altered the letter to Han Sui, so that it fell into the hands of Ma Chao, causing Ma Chao's suspicion and causing the contradictions within the coalition army to intensify. When the time was ripe, Cao Cao took the initiative to launch an attack on Ma Chao, Han Sui and other coalition forces and fought a decisive battle with the coalition forces. During the decisive battle, Cao Cao attacked from the front with some lightly armed cavalry and maneuvered with mobile tactics. Ambush the elite cavalry on both sides of the position. When Ma Chao attacked with all his strength, the two armies fought fiercely for a long time, and when Ma Chao's army entered the ambush area, Cao's ambush cavalry suddenly attacked from the left and right flanks. The coalition army was defeated and dispersed, Li Kan and Cheng Yi were killed, Ma Chao and Han Sui fled back to Liangzhou, and Cao Cao entered Guanzhong. In October, Cao Cao dispatched his generals to pursue Ma Chao's various departments, Guanzhong and Liangzhou counties, all of which were controlled by Cao Cao. In this battle, all 100,000 people of the coalition army were annihilated, and Cao Cao's troops only suffered more than 10,000 casualties. Since then, Guanzhong has been lost, and the door of Hanzhong has been opened. ”

As usual, Honggu was the first to speak, and either she didn't say it, and what she said was to contradict Yang Ke: "Didn't you say that Tongguan is dangerous, and one husband should be closed, and ten thousand people can't open it?" Why was Cao Cao able to pass through Weikou back then, according to this, wouldn't it be useless to hold Tongguan? ”

Yang Ke pointed to the line of the handover of heaven and earth and said: "Look at it, that side is Weikou, if you come to use troops, will you abandon Tongguan and seize Weikou?" ”

Honggu looked far away, stared for a long time before saying: "I once went there with my brother, with my back to Weikou, if the enemy army comes to attack, wouldn't it be a dead place?" ”

Yang Ke said with a smile: "The art of war has thirty-six strategies, and the use of it is wonderful, and it is all about one heart. There are pros and cons to everything, and the key is not in this place, but in how you avoid the harm and seek the advantage. In the eyes of ordinary people, it is a place of death, but in the eyes of those who make good use of soldiers, it is not a place of life. Cao Mengde was able to turn death into life back then, so he won a big victory. And Ma Mengqi was because he thought that this was the place of death, so he suffered a fiasco. ”

Honggu's competitive temperament came up again, and she pouted: "You teach me how Cao Mengde turned death into life back then." ”

Yang Ke said: "Everyone in the world said that Cao Mengde won this victory because he used a divisive strategy to make Han Sui and Ma Chao turn against each other, but in fact, it is not. When Cao Mengde separated Han and Ma, in fact, the general trend had gone, Ma Chao would be defeated, and the root cause of Ma Chao's defeat was that he held the Tongguan natural risk, but he didn't know that the Tongguan natural danger was because Ma Chao's army was good at cavalry, and Weikou was a horse Pingchuan, he thought that Cao Mengde abandoned Tong's words, and in Weikou with infantry against cavalry, and there was no danger to defend, it was self-defeating. Who would have thought that Cao's army would be able to build a fence to cover the march of the army after crossing Weikou, and then gather sand and irrigate water, and when the weather was cold and the ground was frozen, it was frozen into a wall to resist the enemy, and Ma Mengqi could not hold on, so the victory was decided. Even if he doesn't have to counter-calculate, Ma Mengqi's general trend is gone, and failure is a matter of time. ”

"According to what you say, isn't it useless to repair the huge Tongguan, so why bother to work the people and waste money?" Honggu's temper is obviously up, and she still doesn't give up.

Seeing Honggu's appearance, Zhang Chang and the others who were standing on the side couldn't help but laugh. Liu San coughed, cleared his throat, and hurriedly interrupted: "Lord Wang, when Cao Mengde resisted the enemy, more than a dozen troops such as Ma, Han, Hou, Cheng, Yang, and Li rose up to resist, and gathered 100,000 mixed troops of Qiang, Hu, and Han, and stationed in Tongguan, and more Hongnong and Feng Yi counties and towns raised troops to respond, why did Cao Cao stand firm and clear the wilderness and refuse to respond to the enemy?" ”

Yang Ke said: "The road in Guanzhong is far away, if the enemy defends according to the steep terrain and sends troops to fight, it can be calmed down by overnight achievements." It is precisely because they join forces in one place that they can capture in one group, although the number of Ma Mengqi's troops is large, but they do not submit to each other, the three armies have no commanders, even if there are many soldiers and generals, is it not a moth to the fire? Cao Mengde defended the danger, in fact, he was waiting for an opportunity, as long as the other party could not attack for a long time, there would inevitably be contradictions, and then take advantage of the gap, he would naturally be able to fight down. Therefore, the confrontation between the two armies is the vision and layout, so those who are good at fighting seek it from the situation, do not blame others, and those who are in power will also have their fighters, such as turning wood and stone, the nature of wood and stone, peace is quiet, danger is moving, the square is stopped, and the circle is done. Therefore, the momentum of a good fighter, such as a person who turns a round stone on a mountain of a thousand people, once the round stone falls from the mountain of a thousand people, who can stop it? ”

Honggu lost a polemic, unconvinced in her heart, and said hatefully: "We are just ordinary people, you are the dignified king of Yu, there is no need to argue with us about these military plans, you think about your strategy, this girl has no time to accompany her, and she leaves." After that, she turned around without looking back, leaving the crowd behind her, ignoring it, and everyone was stunned.

Hei Qi quietly approached Yang Ke's side, lowered his voice and said, "Lord Wang, Lao Hei can see it, this red aunt is angry when she sees you, how did you provoke this aunt?" ”

Yang Ke sighed and said, "If you know, can you tell me?" ”