The reason why he chose to attack Huainan at the time of the New Year's Festival was naturally familiar to Sima Yi after careful consideration.

If Sima Yi had taken Linghu Yu and Cao Biao and had taken advantage of the situation to move south, Zhunnan at that time would have been on alert for the whole army, as if facing a great enemy, not to mention that the training of recruits in Sima Yi's hands had not yet been completed and had not formed combat effectiveness, even if there was really an army capable of conquest and habitual warfare, Sima Yi might not choose to go south.

At that time, Huainan, because of the accident of Ling Huyu and Cao Biao, had forced them to the point where they had to rebel, and the entire Huainan was waiting for it.

Such a tough battle, Sima Yi will definitely not fight easily, in terms of patience, Sima Yi dares to say second, no one dares to call it the first in the whole world, Teenage Mutant Ninja Turtles, that is definitely not a waste of fame.

Time exhausts everything, one blow, then declines, three and exhaustion, after half a year of waste, the momentum of the Huainan Army is far inferior to the beginning, after all, more than half a year has been tense every day, and no one can stand it.

The low morale and the harsh environment made it an indisputable fact that the Huainan Army's defense was slack as the New Year approached, and what Sima Yi was waiting for was such an opportunity.

In ancient times, wars were generally not fought in winter, due to the lack of corresponding warm equipment, in this extremely cold weather, non-combat attrition is very serious, often a cold snap, can freeze to death half of the people.

Especially this year, it has snowed heavily, and the weather is colder than usual, in this case, Wang Ling and Zhuge Ke naturally thought that Sima Yi would not attack at this time, so they were ready to celebrate the New Year with peace of mind.

It's a pity that their opponent is Sima Yi, this opponent with a brain circuit that is different from ordinary people often has a behavior that is different from ordinary people, others are afraid of the cold, but Sima Yi is not afraid, he has planned to launch an attack during this time period as early as a few months ago, and has ordered people to secretly prepare a large number of warm clothes in advance, which is enough to cope with the cold climate in winter.

However, people are not as good as heaven, this winter's heavy snow has made the climate even colder, and Sima Yi's plan is also facing great challenges, and the prepared cold things seem to be difficult to resist this cold blowing out of hell.

If the operation continues, Sima Jun will have to face more injuries and more non-combat attrition, but from another point of view, the harsh combat environment will inevitably cause the opponent to miscalculate, giving Sima Yi more opportunities to take advantage of.

So in the end, Sima Yi decided to lead his troops south and launch a surprise attack, catching Wang Ling off guard.

After taking Ping'a, Sima's army did not stop, the strength of the Huai River, while Wang Ling had not yet come back, the army had already crossed the Huai River, and the soldiers were divided into two roads to take Shouchun.

The Huai River defense line has always been a line of defense that Sima Yi is more afraid of, although it is just a small ditch compared to the Yangtze River defense line of Wu State, but for the Wei team, which is dominated by army infantry and cavalry, this is also equivalent to a moat.

After defeating Ping'a, Sima Yi ordered Sun Li to speed up his march and force his way across Huainan before Wang Ling could respond at all costs.

Compared with Wu's army, Sima Yi is not good at water warfare, and Sima Yi still attaches great importance to whether the forced crossing of the Huai River can be successful, and whether the follow-up attack on Shouchun is smooth.

This time, the Sima army took advantage of the heavy snow to go south, it was a surprise, the attack was unprepared, to the greatest extent to take advantage of the weakness, to take Ping'a as quickly as possible, and then rush to the Huai River, and so on until Wang Ling received the news of the loss of Ping'a, the Sima army was already in the Huai River, even if Wang Ling wanted to organize the army to resist the Sima army's river crossing operation, I am afraid that it was too late in time.

Sure enough, Wang Ling was not prepared for Sima Jun's attack, and the news of Ping'a's loss reached Shouchun, Wang Ling was panicked, and he didn't have the courage to launch a counterattack at all, blocking Sima Jun's army on the Huai River and recovering Ping'a, but hurriedly shrinking his forces to hold Shouchun.

From this side also reflects Wang Ling's weakness and timidity, he did not have the determination and courage to face Sima Yigang at all, but just hoped to rely on Shouchun City, which had been painstakingly operated for many years, to block Sima Jun's attack, perhaps in Wang Ling's plan, there was also the idea of sticking to the help, and he pinned the hope of solving the Shouchun crisis on the reinforcements of Wu State.

This Wuwang alliance has always been the focus of Sima Yi's serious research, if it was just one Wang Ling, maybe Sima Yi would not be so serious about preparing, after all, Sima Yi defeated Wang Ling, it should be a relatively easy matter.

However, Wang Ling's surrender to Wu made Sima Yi more jealous, and Wang Ling's surrender to Wu was not as simple as one plus one equals two, and the chain reaction caused by it must be something that Sima Yi needed to consider carefully.

Sima Yi knew very well that Wang Ling's surrender to Wu was actually forced by the situation, not what he wanted, after all, Wang Ling had always wanted to collude with Linghu Yu before, trying to set up Cao Biao as the new king, from this point of view, Wang Ling at that time may not have the intention of surrendering Eastern Wu, he counted on the union of Huainan and Yanzhou, so that he could form a depth on the southern front, and called on the anti-Sima alliance in the world to participate in the battle together.

But as Sima Yi resolutely cleaned up Ling Huyu and Cao Biao, Wang Ling became lonely, and at this time he had to find other backers, even if he was infamous for treason.

Wang Ling needed a strong backup, while Wu had been aiming for the south for many years, just like two people with evil intentions, and the two forces soon formed an alliance.

However, even if the head of Shouchun's city is planted with the banner of Wu, it is difficult for Wu's forces to really intervene in Huainan, after all, what Wang Ling needs is only Wu's assistance at a critical time, not that he will surrender to Wu and give up the land of Huainan.

So far, Wang Ling is still the king of Huainan, and he will never allow anyone to try to get his hands on Huainan until he is threatened.

Therefore, Sima Yi did not attack Huainan for a long time, and there are also considerations for this reason, Sima Yi did not want the army of Eastern Wu to participate in the defense of Huainan too early, and it was the direction that Sima Yi needed to consider.

Now that Wu's army is far away in Niuzhu, even if he wants to reinforce Shouchun, it will take a long time, which is more advantageous to Sima Yi. Reading with quick eyes_