Zhao Xing's three-year layout for the Sima family in Yizhou. Once launched, the fierceness and ferocity of its offensive have far exceeded Sima Yi's expectations.

The vanguard army and the Kunlun army, which had been ready as early as a year ago, after receiving the general attack order issued by Jia Xu, launched a stormy attack on the Yizhou defenders from Baishui Pass and the east and west roads of Yinping Road at the same time, so that the Yizhou soldiers, who originally thought that the vanguard army and the Kunlun army were nothing more than this, did not have time to exclaim and sigh, and were annihilated by the rain of arrows and artillery falling from the sky.

After the efforts of Ma Jun and Zhao Bu day and night, the Crouching Tiger Equipment Research Institute finally developed a super siege weapon - the red-coat cannon. Of course, in order to maintain the same name as the small artillery "Shenwei Cannon" that had been developed before, this huge artillery that needs to be dragged by an elephant, a specialty of Cochin County, is called the "Shenmu General Cannon".

Hurry up and hurry, before launching a general attack on the northern part of Yizhou, the thousands of soldiers of the Dingyuan Army who were responsible for escorting the "Shenwu General Cannon", with the help of dozens of elephants transported back from Jiaozhi County, finally sent ten super artillery pieces to Zhang He and Xu Rong respectively.

When Zhang He and Xu Rong saw the effect of the Shenwu General's cannon firing towards a mountain wall, they both stayed in place for a long time before they came back to their senses. They knew that the Crouching Tiger Equipment Research Institute had not stopped operating all these years, and would manufacture some unbelievable weapons from time to time, but they never thought that Ma Jun and Zhao Bu would be able to make such a terrorist/terrifying firearm that could no longer be measured by normal thinking.

It is definitely not too much to use the word "terror/horror" to describe the Shenwu General Cannon. When the soldiers of the vanguard army and the Kunlun army placed these big guys a few miles away from the pass where the Yizhou army was stationed, and then lay on the ground and covered their ears tightly, watching the general cannon make a sound like thunder in the nine heavens after the huge vibration, and after a while, they saw a huge pillar of smoke rising from the pass in the distance, and huge gravel and rubble rose into the sky.

After a few cannons, the pass in the distance was cut off a thick layer alive, leaving only the ruins and broken walls, as for the Yizhou soldiers in the pass, they were either blown into powder, or were shocked to death, basically there is no possibility of survival.

Immediately after the firing of several large guns, soldiers in charge of maintaining the guns stepped forward to clean the barrels and check whether the gun bodies were cracked and deformed. Although the cannon is cast with molten iron, there is still a danger of exploding, and every time it is fired, it needs to be checked by experienced soldiers to avoid the recurrence of the tragedy of cannon fodder death.

In the process of casting and experimenting with the Shenwu General Cannon, despite the caution and caution of Ma Jun and Zhao Bu, there was still a tragedy of exploding, killing dozens of people on the spot. Fortunately, Ma Jun and Zhao Bu were both standing at a safe distance and observing through binoculars, otherwise their current tablet would have been hung in the memorial hall of Taihang Martyrs' Garden.

Although the cost of the Shenmu General Cannon is staggering and the launch cost is very high, its huge deterrent effect and destructive power are indeed satisfying. In just a few days, with the help of the power of General Shenwu's cannon, the vanguard army and the Kunlun army have uprooted a large number of fortresses and passes built by the Yizhou army along the road, and drove the army to a position less than five miles away from Jiameng Pass and Gangdi Road.

The first thing the defenders in the northern part of Yizhou did now was to find a ladder or rope to climb down the pass as soon as they heard the earth-shattering sound of artillery, and then quickly flee towards the pass and fortress in the south. In the face of this unreasonable mass killing weapon, from high-level generals to ordinary soldiers, they just retreated all the way south with instinct, and then waited for the army of Liangguo to drive the elephant to drag the Shenwu General Cannon into view again, and then carried out the next escape.

Judging from the effect of the current use of the Shenwu General Cannon, the goal set by Zhao Xing at the beginning to reduce the casualties of soldiers by virtue of overwhelming firepower has basically been achieved. Although the soldiers of the vanguard army and the Kunlun army had fewer opportunities for hand-to-hand combat, they greatly reduced the casualties. In the course of this one-sided offensive, the main duties of the soldiers were to clear the roads, clear the ruins, search and clear the remaining enemy soldiers, and there was no large-scale group fighting.

Of course, this peculiar form of warfare was only applicable in the process of breaking through the passes, and when the Yizhou army withdrew all the way to the Chengdu Plain, the vanguard army and the Kunlun army could not rely on the power of this artillery. At that time, that is, the final frontal decisive battle, all the soldiers need to work together to completely annihilate the main force of the Yizhou army.

The layers of passes that Sima Yi had painstakingly built in the north of Yizhou were blown up one by one by the cannon of the Shenwu generals like peeling an onion, and the gunpowder buried under these passes sometimes exploded and lifted the entire pass into the sky, and sometimes there was no movement until the army of the Liang Kingdom passed over it.

After clearing a large number of gunpowder passes and fortresses buried under several foundations, the vanguard army and the Kunlun army were already very familiar with Sima Yi's vicious intentions, and they either passed through the passes and fortresses that had not yet exploded as quickly as possible, or first sent people to stuff a small amount of gunpowder under the fortress and draw out a fire rope to completely detonate the gunpowder. In short, it will definitely not stay and become a hidden danger for Yizhou to Liangguo in the future.

Sima Yi, who was originally sitting in Zitong, had urgently withdrawn to Chengdu, and on the one hand, he commanded the Yizhou North Route Army to retreat in an orderly manner in the direction of Chengdu, and on the other hand, he urgently mobilized Zhang Renjun on the eastern front to urgently return to Chengdu. Sima Yi is no longer thinking about how to carve up Jingzhou, this time Zhao Xing's north-south attack against Yizhou is really much beyond his expectations, and he can't think of any idea to save the Sima family from destruction.

In fact, the feast that Zhao Xing prepared for Sima Yi was not as simple as a sandwich attack from the north and south.

Wei Yan had already led 20,000 troops trained by him for two years, from the direction of the snowy plateau to the west of Shu County. This time, Wei Yan will use it as a sharp knife to directly attack Chengdu and capture all the Sima family.

Wei Yan originally had the ability to make dangerous moves, and this time he was entrusted by Zhao Xing with the important task of exterminating the Sima family, which can be regarded as making the best use of his talents.

As for Zhang Ren leading the army to retreat from the direction of Yiling to Chengdu, it was not so easy. It is easy to go out of Shu along the Yangtze River, but if you want to return to Shuzhong along the road, you have to climb over many mountains, and it is impossible for the army to reach Chengdu without two months of marching.

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