The Yan army was helpless in the face of a fortification consisting of only trenches and barbed wire. But it was such field fortifications that left their cavalry, artillery, muskets at bay. Yan Jun learned from Qin Jun's set. But it doesn't mean that they have learned the true skills of Qin Jun. Their officers came on the fly. These officers learned the Qin army's set very well. But if you fight on your own. They will only fight according to the textbooks issued by the Qin army. For example, their infantry line has not changed from the beginning to the present.

Now suddenly faced with such fortifications. They're not going to be able to make a move. If there is a city on the opposite side, it is much easier to fight. Just fire, fire. If you fire more cannons, the city will surrender. But now it is the enemy who is hiding in the trenches. Your bullets, shells can't hit the enemy at all. Flying shells can only hit the air, but not people. This battle made the officers of the Yan State feel helpless.

The war continues. Tian Heng's move was supported by all the Qi people in the vicinity. Some aristocrats also began to join in. The nobles of the Qi State brought their well-equipped private soldiers. The privateers used muskets. At the same time, Tian Heng's brother Tian Rong also led a group of people to support. And a large number of arms were delivered. The musket is very easy to operate. This equipment is just right to equip the rebels. And not only muskets. Tian Rong actually got five artillery pieces. These artillery pieces were all brought from the Qin State. Those armed men could only have small artillery. Especially the three-inch horse artillery. The main thing is that it has good maneuverability. These cannons were sold by the Qin people to the Koreans, and the Koreans resold them to the Qi people.

And not only from the rear. The retreating Qi army in front of them crossed the blockade of the Yan cavalry and climbed through the barbed wire fence to enter. However, the number of people who escaped was not very large. The main reason is that the cavalry of the Yan State is extremely fierce and cruel. They sent bands of cavalry to ambush at the intersection of the road, and it was there that many fleeing Qi troops were ambushed. Very few have been able to escape the palm of their hand.

In order to boost morale, Tian Heng decided to launch an artillery attack with the only artillery in his hand.

Since the Yan army was the attacking party, they frequently launched attacks. Perhaps because of the inertia of the attack, their camp was still built according to the original pattern. A large amount of barbed wire was laid around. Then regular patrols are dispatched. And the soldiers were very generous to enter the camp to rest.

There is nothing in such an arrangement. But the defense of artillery was neglected. The Yan army was very bold to arrange the camp two miles from the opponent's position. Although it is heavily guarded, there are cavalry defenses. But this distance is precisely at the critical point of the artillery firing range. That's the point of disaster.

In the evening. At this point, Yan Jun had already fallen asleep. However, the Qi army secretly dug the trench of the front line forward by 300 steps. All three guns were mounted on a makeshift mound with the gun mounts removed.

"Have you taken aim?" Tian Heng personally asked his next doorman. This doorman shoots a good arrow. So he was responsible for shelling the Yan army.

"Lord, rest assured. It's already been aimed. The doorman said.

"Open fire." Tian Heng ordered.

"Open fire." As he spoke, the doorman pulled the cannon and lit the fuse. The fuse ignites quickly. Then there was a loud "boom". Then two more guns began to take place.

The artillery fuzes purchased by Qi are still traditional line fuses. This kind of fuse has long been used by the Qin State. Instead, a paper tube is used to wrap the propellant. Or a new type of rear-loading artillery shell that uses mine mercury as a firing fuse.

The solid cannonballs flew straight into the tent of Yan Kingdom. Many soldiers were killed by shells in their sleep. Some people heard the movement of the artillery but did not move, they thought that the artillery was firing, and scolded the artillery for not being authentic. But soon they ran out in a panic. A solid bullet suddenly entered their tent and struck a bloody hole in the upper body of a soldier who had just risen. Everyone was awakened at once.

The Yan army did not expect that the other side would shell the camp at all, they had already ignored the other party's artillery. The shelling lasted an hour. The Yan army camp was beaten in a mess.

Their soldiers all stripped to sleep. In order to survive, they could only lie naked on the cold ground. The vigilant soldier saw the situation clearly and reported it. But it was not possible to do anything about it. The other party is an artillery, and in his hand is a musket. It's a long way off.

The artillerymen frantically searched for their clothes. Then he was whipped up by an officer who was also dressed in disarray. They struggled to push the cannon to the battle position. Winter nights are cold. These Yan Jun, who were only wearing single clothes, were shivering all over their bodies, and their teeth were chattering.

The rest of the infantry was also lying on the ground or in the ditch in the cold. Under the artillery counterattack of the Yan army. The shelling gradually ended. But the opposing artillery positions advanced three hundred paces. And the other side holds the commanding heights. This is very detrimental to the Yan army.

The next day, the camp chief sneezed, and yesterday he also fell to the ground with a cold. Assign defensive tasks. He ordered all officers to build defensive positions according to the fortifications shown later in the Qin army manual.

So, starting in the morning, the Yan army also began to dig trenches. However, the ditch of the Yan army is much more regular than that of the Qi army. After all, they had the Qin army's experience in trench warfare. They dug communication ditches, trenches, and burrows. Where they sleep at night. Not only that, but they also looked around for wood, not just for heating. Rather, it is a kind of reinforcement of the entire trench.

Some soldiers had to build toilets and canteens. Then it's time to look for some gravel. They were to harden the pavement in the trenches. Because it's cloudy, it's going to snow. As soon as the snow melts, it turns into mud everywhere. They don't want to roll around in the mud like pigs.

Qi Yijun took the telescope and watched Yan Jun busy from the commanding heights. They can all see Yan Jun's movements. You can even see what the other person is eating. The distance between the two sides is not very far, less than two miles. But both sides have set up a large number of barbed wire fences to prevent the other from sneaking up. What is even more amazing is that they actually hung the canned food box on the barbed wire fence for the first time. However, they are not preventing the other party from sneaking up, but showing off. Pure ostentation, seducing each other. Because the other party has never even seen canned food.

In this way, the Yan army stagnated. They confronted the Qi army. Both sides are trenching defenses. Everyday life has also begun to become monotonous. The distance between the two sides was very far at first. But gradually, they started digging non-stop. Push the forward position like two children playing at home.