The weakness of the Zhongzuo Sojo also reflects the combat characteristics of the Zheng family against the enemy at sea, since it became a hostile relationship with the Tiance army, the Zhongzuo Socheng has also been strengthened and repaired, and the most important measure is to strengthen the armament.

The three Hongyi cannons at the head of the city, bought from the Portuguese in Macao, were one of the precautionary measures.

However, after hearing that Manila and Batavia were captured by the Tiance Army, Zheng Zhilong also lost enough confidence in the Europeans' firearms against the Tiance Army.

After all, the Hongyi cannon was purchased by him with a lot of money, and something is better than nothing.

Facts have also proved that the Hongyi artillery is vulnerable in front of the Tiance army, and the shelling of the 155-millimeter howitzer was launched from a distance of three kilometers, and because the road conditions on Xiamen Island are rugged and uneven, the howitzer is fired at a position that is beyond the firing range.

It's not that the howitzers are already far beyond visual range, it's that they're blocked by obstacles, and even if Zheng Jun uses a telescope, he can't see where they are.

The maximum range of the Hongyi cannon may be up to three kilometers, but only God knows the accuracy, and their optimal shelling distance is actually only within five hundred meters. Because it is a smoothbore gun, and the artillery of this time and space does not have the concept of calculating the parameters of the shelling, it just walks by feeling.

The shelling of 155-mm howitzers outside the line of sight is nothing more than a new attempt, training troops.

Twelve howitzers were a fierce shelling of the city on the center and left, and the observer provided the shelling of the elements in turn, and at such a close distance, the modern version of the self-propelled howitzer had computer calculation parameters, so almost none of the shells missed, and all of them fell on the city.

The first to be blown up were three Hongyi cannons, which were large enough to have obvious targets, followed by other artillery pieces of various types located at the head of the city.

As a maritime family, the Zheng family still has a considerable amount of artillery, and almost all medium and large warships are equipped with artillery, so there are a lot of fire cannons in the city.

At a high speed of more than 1,000 meters per second, the 155-millimeter heavy grenade hit the not thick city wall of the center and left, and the damage caused was astonishing.

In just a few rounds of shelling, not only did all kinds of artillery on the south city wall disappear, but the city wall had collapsed and damaged in many places, and the powerful heavy grenades flew more than 100 meters away from the masonry that surrounded the city wall, and most of these bricks and stones flew into the city due to inertia, as if it was raining bricks and stones.

After the first round of shelling, there were no human figures on the city walls, the brave people had been torn apart by artillery fire, and the most tragic thing was the artillerymen, whose bones were not left under the grenades.

Where have the Zheng troops in the city seen the bombardment of modern heavy artillery, their concept of artillery bombardment is still in the category of bronze cannon solid shells, under such shelling, even if they do not die, the rest are terrified.

After the shelling began, there was already a great chaos in the city, and the Zheng army, who was close to the south of the city, shouted and hugged their heads, and the sky was also splashed with bricks and stones.

Zheng Zhibao, the commander of the left guard of the center, was desperately guarded by his own soldiers and retreated to the city, Zheng Zhibao was also a little dumbfounded because of the ferocity of the firepower of the Tiance army, and when he reacted, he had been taken by his own soldiers to the government of the Zhongzuo Institute, where the original thousand households were stationed.

Far away from the position of the shelling, Zheng Zhibao also reacted, he pushed away his own soldiers and said loudly: "The Tiance army will enter the city after the artillery bombardment, and order all the troops to gather the soldiers and prepare to resist the enemy." ”

In the battle outside the city, he saw the power of Tiance Army, Zheng Zhibao also knew that it was difficult to protect the center left, and his task now was to drag down most of the Tiance Army and buy time for Zheng Zhilong to retreat.

The leaders of the Zheng family, who were in a state of panic, hurriedly received orders and prepared to give the Tiance army a head-on attack in the city.

After more than ten minutes of self-propelled howitzer shelling, the southern city wall of the center and left was basically destroyed, and there were ruins and broken walls everywhere, and several huge gaps were presented in front of the Tiance army.

There are also more than 20,000 Zheng troops in the city, this is the report of the agents of the investigation army. Therefore, the Tiance army did not immediately attack the city, and the mortars located in the artillery position of Huli Mountain, under the guidance of drones, began to launch artillery attacks on the defenders in the city.

After all, the operation on Xiamen Island was a local operation, so the 155mm howitzers did not participate in the shelling of the city, so as not to injure more civilians by mistake.

As soon as the Zheng army in the city gathered its troops, mortar shells fell from the sky, and dense explosions sounded in the city, and the shells rushed to the Zheng army's crowd, and the shrapnel flew sideways after the shells landed, harvesting countless lives.

The Zheng army then collapsed and continued to flee, although the Zheng army's will to fight was stronger than that of the Ming army in the interior, but they could not face such a war. I don't know what the enemy looks like, but this cannonball is chasing their ass like an eye, and it doesn't let people live?

Zheng Zhibao was completely dumbfounded, the artillery of the Tiance Army was too accurate and too ruthless, how could the whole team meet the enemy in such a situation? The point is that such a head-to-head and face-to-face shelling has a huge impact on morale.

But as Zheng Zhilong's own brother, his responsibility is irreplaceable, even if failure is inevitable, he has to be a dead horse as a horse doctor, otherwise the Tiance army will drive straight in.

"Spread out, spread out, let all the departments disperse, if the Tiance army rushes in, we will fight separately, and they know that our Zheng family is not vegetarian." Zheng Zhibao roared loudly.

War in the era of cold weapons focused on morale, formation, and division of labor and cooperation among various arms of the armed forces. Archers, sword and shield soldiers (Zheng family's rattan armor soldiers), fire guns, and spearmen have their own uses. The city is usually considered a failure, and the morale is usually low, and they fight separately, which usually means that they will be broken by each other, but Zheng Zhibao can't think about it.

The Zheng army in the city had been dispersed by artillery fire, and Feng Yuanshan, the commander-in-chief of the land battle, ordered the Tiance army to attack the city.

Because 40 armored vehicles were allocated to pursue Zheng Zhilong, the number of armored vehicles that attacked Zhongzuosuo City was reduced to 30, and all armored vehicles included the Navy's amphibious assault vehicles.

After the armored vehicles stormed into the city, they met no large-scale resistance, only sporadic attacks, and the sound of on-board machine guns rang out in the center of the city.

"Brothers of the Zheng Jiajun, we are the Tiance Army of the Prince of the Imperial Court, Shaobao, the Soldier of the Military Department, the Liaodong Economic Strategy, and the Governor of Yingtian, Wang Sihua. We are both officials and soldiers of the imperial court, but we just had some misunderstandings with you and your General Zheng Zhilong, so such a conflict broke out, but we are not here to kill you, as long as you surrender, we will not harm your lives, and our Tiance army is what we say. ”

The car loudspeaker began to broadcast the voice of persuasion in a loop, Zheng Jun is not everyone should die, Wang Yue still has to fight for it.

The effect of persuasion is still good, and many people have come out of hiding places.