The first step of the persuasion plan:

Yun Yi wrote a letter of persuasion to the Guangming Army, persuading the Guangming Army to surrender, and gave the Guangming Army half an hour to consider in the letter of persuasion, and if the Guangming Army did not surrender after half an hour, the Yun Family Army would attack.

Of course, this attack was not a large-scale attack on Zezhou City by the Yun Family Army, but the artillery in the Yun Family Army controlled the artillery to fire at Zezhou City, first knocking down the morale of the Guangming Army, and letting the Guangming Army know the strength of the Yun Family Army.

Time passed slowly, and in the blink of an eye, half an hour had passed, and the Bright Army in Zezhou City did not reply, which already showed the attitude of the Bright Army: they would not surrender.

"Order, fire at Zezhou City according to the plan!" Yun Yi ordered.

"No!" The herald received the order and went down to convey Yunyi's order.

On the frontal (western) battlefield where Yun Yi was located, the artillery commander (the artillery of the first brigade) on the artillery position of the first brigade of the first division of the Yunjia Army received the order, and quickly ordered the artillery elements to prepare.

The artillery position of the 1st Brigade is about 2 miles away from the city of Zezhou, and there are 10 4-inch guns and 24 3-inch guns on the artillery position, in fact, there are a large number of 2-inch guns in the 1st Brigade, but the range of the 2-inch guns is relatively close, and the range of the 3-inch guns and 4-inch guns is more than 2 li, and all of this artillery position has only 3-inch guns and 4-inch guns.

Under the control of the artillerymen, all the artillery muzzles turned to the city of Zezhou.

Artillery Commander: "Four-inch guns are loaded with solid shells, aimed at the city gates, three-inch guns are loaded with flowering shells, three-inch guns No. 1 to 12 are aimed at the left wall, and three-inch guns No. 13 to No. 24 are aimed at the right wall." ”

The commander moved his mouth, and the soldiers below were so busy that their brains were sweating, firing artillery is not so simple, if you want to make the shells accurately concentrate on the target, you also need to go through a series of azimuth and distance calculations, just take the shells fired by the artillery to hit the enemy on the city wall, you must decide the height of the city wall, the distance from the artillery to the city wall, the angle of the artillery and other data.

In artillery, they can also be called artillery calculators, who have their own personnel who specialize in calculating these data.

After the artillery calculator calculates the data, the artillery elements will be adjusted according to the data, but some of the data have already been calculated in advance, and it will not take long after the order of the artillery commander is issued, all the artillery on the artillery position has been loaded with ammunition and ready, and next to the artillery, there is also an artillery man holding a burning torch.

"Fire!"

Rise! Rise! Rise!

The artillery commander gave the order, and the artillerymen holding the guns lit the fuses with torches, and after a few breaths, in the light of fire and black smoke, one after another solid bullets and flowering shells rushed out of the muzzles and flew towards their targets.

"What's that?" On the west wall of Zezhou City, Liu Kun, who had the highest strength, saw that there seemed to be an unknown object flying towards him in his sight.

"Get out of the way, that's the enemy's 'hidden weapon'." Eleventh Elder Yan Ping shouted, protecting Yuan Xin to dodge, and Liu Kun and Zhu Wen also felt immortal and jumped up.

Rumble!

Just when the four high-ranking members of the Bright Army were standing far away from the place where they were standing, a flowering bomb hit there, making a deafening explosion, and the surrounding soldiers of the Bright Army, who could not dodge, were hit by the fragments from the explosion of the flowering bomb, three people were directly killed, and many others were injured.

And that's not all!

Rumble! Rumble! Rumble!

Seven of the ten solid shells fired by the ten four-inch cannons hit the west gate of Zezhou City, and the seven solid shells directly left seven holes the size of a human head on the hardwood gate, and the west gate was crumbling, and there were still a few people who were "lucky" to be hit by solid bullets by the bright sergeants behind the west city gate, and those who were hit either had their arms and legs mutilated or died directly, and the scene was miserable.

Most of the twenty-four flowering shells fired by the twenty-four three-inch cannons directly hit the city wall and exploded on the wall, leaving only slight damage and some black traces on the west wall of Zezhou City, although the hit rate was not high, but there were still five flowering shells that fell on the city wall, and exploded in the ranks of the Guangming Army, bringing huge damage to the Guangming Army, if it were not for Yuan Xin, Liu Kun and other four people to find out in advance and dodge, I am afraid that the four of them would also be injured, and Yuan Xin, who had the lowest strength, was more likely to be seriously injured.

When the explosion of the western wall of Zezhou City reached the other three directions of Zezhou City, the artillery positions of the Yunjia Army in the north, south, and east directions opened fire in unison under the orders of the artillery commander.

Rumble! Rumble! Rumble!

More than 100 shells flew towards Zezhou City, more than 70 Guangming soldiers were killed in the first round of shelling by the Yunjia Army, and hundreds of Guangming soldiers were injured.

"Lei Gong has thundered." Many of the bright soldiers regarded the bombardment of the Yun family army as thunder, and they lay on the ground in fear, trembling.

"What a powerful 'secret weapon'." Liu Kun, who escaped the catastrophe, also said with emotion.

Sighing and sighing, Liu Kun and others quickly ordered their subordinates to treat the injured soldiers of Guangming, but about twenty breaths after the first round of shelling of the Yunjia Army, the second round of shelling came.

"Damn, everyone dodge!" Liu Kun, who had the highest strength, was still the first to discover the bombardment, and Liu Kun immediately shouted loudly for the others to dodge.

Not long after Liu Kun's words fell, the second round of artillery bombardment of the Yun family army came, and the remaining three gates of Zezhou City were all shattered in the second round of shelling, this time, more flowering shells fell on the walls of Zezhou City, and the warriors could still have time to dodge or be hit by the fragments of the flowering bullets without dying, but those ordinary light soldiers were unlucky, in the second round of bombardment of the Yun family army, more than a hundred light soldiers were killed, and even more were injured.

The Yunjia army shelled two rounds in a row, and the morale of the Guangming Army dropped greatly, and some of the Guangming soldiers lay on the ground and didn't dare to get up, and no matter how the commander of the Guangming Army drove them away, they couldn't get up.

After more than 20 breaths, the third round of shelling arrived.

The fourth round of shelling.

Fifth round of shelling.

The Yunjia army carried out five rounds of artillery bombardment, sending more than 500 shells to the head of the Guangming army, killing more than 400 Guangming soldiers and soldiers, killing and wounding more than 1,000 people, and the direct battle of the Guangming army attrition of about 1,000 people.

It was a long time since the fifth road bombardment of the Yunjia Army ended, and the other Guangming soldiers dared to stand up to treat other injured comrades, in the corner of the west wall of Zezhou City, Liu Kun and others looked extremely ugly, at this time they also knew the news that the four city gates of Zezhou City were smashed, the city gates were gone, and it was becoming more and more difficult for the Guangming Army to defend the city gates, can the faces of Liu Kun and others not be ugly?

About a tea time later, Yun Yi sent someone to send another letter to the Guangming Army, still a letter of persuasion. [.]