In the era of cold weapons, a city with tall and thick walls, and the quality of the attackers and defenders at the same time, it is difficult for the attacker to conquer the city by storming, and if you have to attack, you must prepare at least many times or even ten times the number of troops.

Even so, most of the time the attacker will not be able to overcome it even if it suffers heavy casualties.

Therefore, most of the time, the attackers prefer to besiege the city, besieging it for a year and a half and waiting for the defenders in the city to collapse on their own.

In the era of smoothbore guns, the role of the city wall is still very obvious, especially after the emergence of the fortress system, a strong fortress is still difficult to overcome, even if the attacker has a superior force and artillery.

Therefore, after the emergence of the fortress system, and the smoothbore guns are still in the era of solid artillery combat, the attacker will not be stupid to attack the enemy's fortress, but will leave a certain number of troops to surround or contain the defenders in the fortress, and the main force will detour deep into the hinterland of the enemy country.

Since the beginning of this period, the combat mode of the troops has changed from the traditional siege warfare to mobile warfare, and the artillery equipped by the troops is mainly field artillery, which is quite obvious during the Hengao War.

However, with the advent of grenades, the artillery is getting bigger and bigger, the power of the giant howitzer is getting bigger and bigger, the weight of the gun itself is getting bigger and bigger, and the previously strong fortress is no longer strong in front of these heavy artillery.

Thus, in recent decades, the pattern of warfare has evolved into a combination of siege and field warfare.

The Luo An army in Cheng Lingfeng's era attacked the fortress of Chongguangcheng and fought it, which was not based on the absolute superiority of troops, but on the absolute superiority of heavy artillery firepower.

Now, the same is true for Lin Ziran's Dingjiang Fortress, and even the firepower of the Luo'an Army under Lin Ziran is even more powerful, not only with a large number of front-loading heavy guns with huge calibers, but also with rear-loading artillery in the experimental artillery battalion.

The combat effectiveness of its artillery units has already surpassed that of the artillery units of the Cheng Lingfeng era. ，

After all, in Cheng Lingfeng's era, his artillery units were still equipped with traditional nine-kilogram field guns, and the range of solid projectiles was still limited to within 1,000 meters, and the effective range of launching grenades was only eight or nine hundred meters, and the grenades used were still wooden fuses.

In the past few years, the South China Sea Machinery Bureau has set off a new type of field artillery, and all feudal towns have begun to equip themselves with new 120 mm caliber on a large scale, with the effective range of solid artillery shells reaching more than 1,500 meters and the range of grenades reaching 1,200 meters.

At the same time, a series of new technologies such as disc metal fuses and maroon propellants were introduced, which made the bronze smoothbore cannon develop to the limit of almost existing technology.

Just the smoothbore cannon has changed so much, not to mention that Lin Ziran has also come up with a rear-loading artillery.

The powerful artillery unit ensured the strong ability of the Luo'an garrison under Lin Ziran.

Under the continuous bombardment of heavy artillery, Li Dingjun's defenders were unable to resist at all, and could not even cover the battle of the defenders of the trench outside the city, which finally led to the defeat of the defenders of the trench outside the city.

A few hours after the battle broke out, by noon, the entire outer defensive position of the Dingjiang fortress had basically been conquered by the first and second divisions.

Subsequently, Lin Ziran personally ordered several subordinate engineer battalions to go into battle together and start blasting operations in different directions at the same time.

No matter how thick the city wall is, it can't stop the blasting of the sappers!

After a noon and an afternoon of continuous high-intensity operation, by the evening, Lin Ziran's engineering unit launched the first large-scale blasting.

After the dull but huge blasting sound sounded, the main blasting point in the northwest instantly freed up a huge amount of smoke and dust.

The huge sound made Lin Ziran in the distance pleasing to the eye, but Li Dingjun in another city was instantly defeated!

It's over, it's all over!

Under such a powerful blast, the city wall will definitely collapse, even if it will still form a huge pile of rubble after the collapse, but it can no longer stop the enemy's pace like the previous vertical city wall.

Want to block?

How to stop it?

The defenders of the city had already lost their morale, panicked, and suffered heavy casualties.

The enemy's intensive artillery bombardment had already caused a large number of casualties among the defenders at the head of the city, and nearly 10,000 troops deployed in the trenches outside the city were also defeated one after another.

Now there are only more than 20,000 defenders in the city, of which nearly 10,000 are still Jian Liangzhi's men, these horses were deployed in the rear before, and some of them were deployed in the port.

Now the tens of thousands of troops stationed at the head of the city are mainly his Li Dingjun's troops, which seems to be a lot of more than 10,000 people, but in fact, with the current morale of the army, it is simply impossible to continue fighting.

Li Dingjun also knows his troops very well, and it is rare that there is no direct large-scale collapse in this kind of battle, and if they are desperately resisted, I am afraid that they will mutini directly like the artillerymen in the northwest corner battery before.

When the northwest corner was heavily bombarded before, Li Dingjun once forced the artillery unit to go to the battery to counterattack, but after the artillery retreated again, he also issued an order to engage in military law, wanting to shoot most of the rout artillerymen.

But in the end, hundreds of artillery men directly resisted.

In the end, for the sake of the overall situation, Li Dingjun still didn't really make a ruthless move, but just shot a number of leaders, and the remaining artillerymen nominally let them make meritorious contributions, but in fact they planned to let them go.

The mutiny of the artillery units at one time was not accidental, but inevitable.

After Li Dingjun calmed down, he already knew this.

In this case, it is not realistic to want the soldiers to come forward and resist desperately.

Although he already knew this possibility in his heart, Li Dingjun still did not give up, so he began to give many orders in succession, so that the troops were ready to resist the enemy's attack.

The walls have been blasted, and the enemy forces will definitely attack along the ruins of the blasted walls.

When the time comes, if you can block it, then there will be follow-up fights, if you can't stop it, then everything will stop.

When Li Dingjun gave the order, Jian Liangzhi on the other side once again gathered with the people of the Luo Hai fleet.

"I can't wait any longer, if I wait any longer, I'm afraid I won't be able to leave!" Jian Liangzhi said worriedly: "Now the situation is very obvious, the Dingjiang Fortress is about to end, and Li Dingjun is going to play, if we continue to stay here, you know the end without me saying more!" ”

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