Huguan is the county of Shangdang, Sima Yi has not attacked Huguan before, the main reason is because of the information found by the scouts, Huguan is not much and the state army is guarding, obviously Cao Liang Huguan and Gao are the same, but also regarded as an outcast, Sima Yi has no doubt about taking Huguan, but after taking it, it will not change the situation in any way, but Sima Jun has to send people to garrison, disperse the troops, and the gains outweigh the losses.

Now Sima Yi's main goal is to find Cao Liang's main force of the Bingzhou army, and only after defeating the main force of the Bingzhou army or capturing and killing Cao Liang can the current passive situation be completely reversed.

As for occupying more or less one or two cities, it didn't mean much to Sima Yi.

But if you want to find the whereabouts of Cao Liang and the main force of Bingzhou, how easy is it to talk about these vast mountains?

Now that he suddenly heard the whereabouts of Cao Liang and Huan Fan, Sima Yi suddenly felt refreshed, Cao Liang appeared in Huguan, this is a golden opportunity, if he can capture Cao Liang in one fell swoop, he will definitely be able to completely change the situation of the war.

Sima Yi immediately summoned the generals, with Sima Shi as the vanguard, Sima Yi commanded the Chinese army, Wang Guanlai broke off, gathered a large army, set off overnight, immediately went north, and took Huguan.

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Cao Liang's appearance at Huguan was actually deliberately revealing his hiding so that Sima Jun's scouts could see it, otherwise Sima Yi might not be able to find Cao Liang's whereabouts even if he sent 10,000 scouts to find him for a year.

Abandoning Gaodu is just to temporarily avoid Sima Jun's edge, it does not mean that Cao Liang has completely given up fighting with Sima Jun, after all, it is the most unwise choice to fight with Sima Yi's 100,000 army, and if you want to deal with the enemy, you must continue to use various means of breaking.

But Sima Yi grew wise after losing the east and west, Sima Yi naturally learned smart, he concentrated his troops, stationed troops in the Dan River, and formed a battalion of his own, not giving Cao Liang a chance to break through at all.

In terms of fighting, Sima Yi is still extremely patient, in the absence of a chance to advance, he can hold on to loneliness, stay on the bank of the Dan River for more than two months, do not divide troops, do not advance, steady as a dog.

From this point, there is really no one who can compare to Sima Yi, when he was in Yongliang, in the face of Zhuge Liang's aggressive offensive, he used a trick to hang the battle card in a deep trench and high base, and dragged Zhuge Liang to death, this attack on the party, in the case of having suffered two big losses, Sima Yi will certainly not repeat the mistakes of the past, give Cao Liang a chance to take advantage of, not to mention that it takes two months, even if it takes two years, Sima Yi probably will not frown half of his eyebrows.

Cao Liang waited for two months, but there was no chance, so naturally he couldn't wait any longer, since he didn't have a chance, he would create an opportunity by himself, so Cao Liang deliberately appeared in Huguan to attract the attention of Sima Jun's scouts.

Cao Liang knew that Sima Yi had not been idle in the past two months, scouts and scouts were everywhere, if nothing else, just to find his whereabouts, to find the opportunity to fight a decisive battle with the Bingzhou army, if he wanted to lure the enemy deeper, he would definitely not be able to show up.

Therefore, Cao Liang appeared in Huguan, I believe that it will not be long before the scouts of the Sima army will spread the news to the camp of the Sima army in Danhe, Cao Liang believes that Sima Yi will definitely not be indifferent, because he has been waiting for this opportunity for more than two months, so Sima Yi will definitely go north to attack Huguan.

In fact, Cao Liang had already completed the strategic deployment before he appeared in Huguan, planning to ambush Sima Jun halfway.

Of course, Cao Liang didn't have the appetite to swallow all of Sima Yi's 100,000 troops in one bite, and Cao Liang's target was the tail of Sima Yi's long snake.

Sima Yi discharged this long snake formation, just to prevent Cao Liang's various breaks, the big array looked at each other, no matter which part of the state army attacked, it would be counterattacked, so Sima Yi was not afraid of the state army attacking at all.

But is it really incomprehensible to a long snake formation? Of course not, any formation has advantages and disadvantages, and the most important thing to crack a long snake formation is to stifle its ability to maneuver, so that it cannot take care of each other, and its formation is self-defeating.

Of course, this method of breaking the formation is based on the fact that their own forces are greater than the enemy's, and the three troops and horses come out together, attacking their heads and tails at the same time.

But now the state army does not have so many men and horses, and if they want to attack the three key points of the Long Snake Formation at the same time, they simply do not have enough troops.

Therefore, Cao Liang could only find another way, using the terrain to stifle the mobility of the Long Snake Formation, jamming its head and abdomen, and forcibly cutting off its tail.

Cao Liang's move does have the taste of the tiger's mouth, he chose the battlefield in Huyukou, here is the only place where Gaodu leads to Huguan, the terrain is dangerous, the width of the valley is only a few zhang, the cliffs on both sides are towering, straight and steep, and if the state army is ambushed here, the front of the Sima army and the Chinese army will be let go, and the rear team will be intercepted directly, surrounded and annihilated, at this time the snake head and snake belly are stuck in the Huyukou and cannot be turned around, and the long snake formation naturally loses its effect.

If it is a normal battle, Sima Jun's long snake formation must be very compact, and the interval between the teams is very small, but if it is a marching state, the entire long snake formation will be several times longer than usual, and the distance between the head and tail will naturally increase a lot.

Cao Liang really put a lot of effort into cracking this one-word long snake formation, just doing sand table deduction with Huan Fan Pei Xiu and them, no less than a dozen times, and Cao Liang also personally went to Huyukou to inspect the terrain here, and finally worked out a detailed combat plan.

Although this plan has a certain degree of riskiness, but it is impossible for anyone to fight a war, and it is necessary to take risks when it is time to take risks, compared to other plans, this plan can be said to be the best one, Huan Fan and others have also made suggestions to further improve this plan.

In order to ensure the success of the Huyukou ambush, Cao Liang mobilized almost all the military forces that could be mobilized, and more than ten days ago, he successively transferred the men and horses of each battalion and each unit to Huyukou secretly for hibernation.

This battle will be an important battle that will determine the fate of Bingzhou, and Cao Liang asked all battalions and departments to go all out to fight a hearty victory.