As the army advanced, because of the trains, the army moved quickly, and the army soon concentrated in Asakusa Castle, which at this time had been expanded to have a population of more than 200,000, where the area of farmland was less than half of this land, and a large amount of land was turned into urban complexes, and there was also an area that was specially drawn for use as a military district.

As the front line of the war, the city of Asakusa City was undoubtedly born for the war, in addition to the peasants, most of the city residents here are the families of military personnel, or the managers of the logistics department, this city is not like the Black Iron City and Joaquin City, there is a bustle at night, with the hustle and bustle of the day, after several years of reconstruction, it has become a large military camp, but even so, 300,000 troops are stationed, this is still a very difficult thing, Shuhan can only let 100,000 people live in the barracks, As for the rest, they took up residence in the surrounding villages for the time being, resting and recuperating, and after a day's rest, Shuhan ordered the troops to move forward.

Because of the large number of troops, Shu Han divided the entire army into five regions, with Zhang Ruoming leading the front army to be responsible for the attack, Lin Bida leading the left army, and Yang Yi leading the right army, each leading 40,000, responsible for coordinating and assisting Zhang Ruoming to ensure the smooth attack, and at the same time ordered Chang Ke to lead 20,000 troops to the rear of the palace, and he himself led 200,000 troops as the central army alone, as the main attacking force to move forward.

The army went to the front line, and the original market city announced its surrender with almost no resistance, after all, there is no natural danger here, and it is impossible to resist the 350,000 army of the Survival Alliance on all sides of the plains, Qiao Xuan still put the location of resisting the Survival Alliance's troops on the Yangtze River moat, so the market city was quickly taken, and Shu Han renamed the city Dingbei City to show his will.

At the same time, arrange for the army to rest here, let Zhang Ruoming and Lin Bida, Yang Yi lead the army to set off first, reconnoiter the dynamics of the Holy Alliance and the plan of defense deployment, compared with the new equipment of the Survival Alliance, Qiao Xuan's side has naturally developed a lot of new equipment in a few years, including anti-aircraft guns, this new cannon can be fired to a farther place, and at the same time there are new chemical explosives, nitroglycerin.

This is a kind of explosive gunpowder that is more powerful than black powder, its power is several times that of ordinary gunpowder, it needs to be made of saltpeter and alkali stone, these two materials are very rare, and there are two kinds of mines inside the Holy Alliance, although there are not many mineral deposits, and the quality is relatively poor, but the power of the explosives is obviously more powerful than Shuhan's black powder, which gives the survival alliance great trouble, as soon as the survival alliance's naval army approaches, it shoots at the enemy's defense line, and does not dodge the shells fired by the enemy, Warships of this form, with steel plates up to forty millimeters thick, ordinary artillery does not work on these warships at all, it is like tickling, and there is no need to care.

But when the shell really fell on them, they realized that they were very wrong, the shell propelled by nitroglycerin, fell on their warship, and immediately became a huge hole, if it hit the fatal part, it was enough to make the ship lose power and stop on land, and then the real trouble came, that is, in the face of these ships that lost power, the Survival Alliance had no way to bring them back, because they were so heavy that even the Survival Alliance itself could not push them.

When the designers of the Survival League were designing the ships, they obviously didn't think that these ships would be hit by someone and lose power, after all, they had put a lot of effort into the power system, not only with the super thick armor on the outside to protect, but also with layers of levels inside to protect the core power, in their opinion, unless the coal was gone, it would be impossible to stop.

But I didn't expect that these ships really stopped, so since they couldn't take them away, they simply destroyed these ships, so that the Holy Alliance couldn't get them, but unfortunately, although the commander wanted to do this, he couldn't do it, because these ships were too strong, even if the explosives on the ship were directly detonated, they could only blow up a hole, but not overturn the entire ship, and it would take at least several hours to blow up such a ship, and it would take at least several hours to completely destroy it.

And will the Holy Alliance give them this time, it is obviously impossible, after seeing the ships of the Survival Alliance stop firing, the soldiers of the Holy Alliance immediately reached the ship and approached, and then engaged in broadside battles, wanting to get the control of the ships from the hands of the Survival Alliance, while the other ships that wanted to come to support were covered by the artillery fire of the Holy Alliance, and could not get close at all, as for the army on the south bank of the Yangtze River, it was suppressed by the anti-aircraft guns of the Holy Alliance, and there was no room for counterattack at all.

The artillery of the Survival Alliance is very powerful, the inside of the shell is filled with solid gunpowder, the killing range is several times that of ordinary shells, but the range is very close, and the artillery of the Survival League uses the ability of engineering to convert it into an anti-aircraft gun, even if it is separated by more than ten kilometers, it can also hit, under this premise, the artillery fire on the shore wants to support, it is also very difficult, and in the end, after a battle, the Survival Alliance not only lost its troops, but even the warship was taken away, this result undoubtedly surprised the entire Survival Alliance, Among them, of course, also includes Shu Han.

At the same time, the worse thing is early, because of the existence of anti-aircraft guns, as long as the hot air balloon of the Survival League is close to the north bank of the Yangtze River, it will be shot by the enemy's artillery fire, the hot air balloon is not an aircraft after all, their speed and altitude are limited to a range, it is very difficult to change, and it is precisely because of this that there are few hot air balloons on the north bank that come back, while the hot air balloon of the Holy Alliance can arrive at the station of the Survival League anytime and anywhere, and then drop bombs, which is for the Survival League, It is undoubtedly a huge trouble, which means that the leadership team of the Survival League is threatened by the enemy's shells, so Shu Han specially ordered that there should be no special identification patterns in the barracks, and at the same time led the entire command team to withdraw from the city and move to the barracks to live, which is almost no different from the military tents where the soldiers live, so that the enemy can at least not find him.

But this is obviously not a good way, it is the most important thing to solve the problem in front of you as soon as possible, the anti-aircraft guns and nitroglycerin of the Holy Alliance, these two points Shu Han really did not expect, especially nitroglycerin, which has greatly improved the enemy's firepower, but the side of the Survival Alliance is not without fighting, with the two weapons of modern rifles and machine guns, as long as they can be used well, it is not hopeless.

For this reason, Shu Han reformulated the battle plan, in his opinion, although the enemy has very advanced gunpowder, but the number must not be particularly large, after all, if the enemy is really equipped with weapons made of nitroglycerin, but the survival alliance will not have to fight, direct surrender may be a little better, and with Qiao Xuan's character, if he really has a large amount of nitroglycerin, how can he still defend on the north bank, but should send the army to the south bank, and then fight with Shu Han, this proves that The amount of chemical gunpowder in Qiao Xuan's hand must not be particularly large, at least not so much that he can defeat the Survival Alliance, understanding this, the pressure in the Survival Alliance's heart has finally been reduced a lot.

As for how to solve this problem, the answer is that in the matter of less, since the amount of nitroglycerin on the other side is not much, then it is necessary to use a large number of targets for the other party to consume, so after a period of time, the survival alliance changed its tactics, pulled the warship to the back, and launched an attack on the enemy with ordinary wooden boats to consume the enemy's shells and gunpowder, and at the same time, through the observation of these artillery fire points, to determine the location of the enemy's anti-aircraft guns, and when it was night, Shu Han arranged manpower to take an assault boat, led by Skywalker, The attack on these anti-aircraft guns has undoubtedly achieved great results.

At this time, Qiao Xuan is not the north bank of the Yangtze River, defending this place is another general, these days of continuous victories obviously made him a little proud, thinking that the survival alliance is nothing, so he began to be a little arrogant, this accidentally let the people of the survival alliance go ashore, and as long as it becomes a close combat, then the speed of the reversal of the battle situation is amazing, with modern rifles and machine guns, Shu Han changed the army combat to a three-three system, fighting in a skirmish, the power is very prominent, and soon opened up the situation in the local area, The enemy's anti-aircraft guns were all blown up, and at this time, the warships of the Survival League began to move and began to carry out landing operations with hundreds of thousands of troops.

And at this time, the defense of the Holy Alliance is obviously not enough, in the face of a large enemy, the cannonball can hit them, it is very easy, but if it is a small individual, the cannon will have nothing to do, after all, the shells of this era do not have the ability of precise guidance, and the accuracy of the cannonballs depends on the unstable operation of the artillery, in this case, in the face of the enemy army like mountains and seas, what can the shells be of use, in just one day, the survival alliance has captured the entire north shore defense area.

But the Survival Alliance is not a vegetarian, in this operation, the Survival League has more than 20,000 soldiers, and three ironclad ships sank, and the Survival League immediately burned the military rations and logistics supplies after seeing that the situation was wrong, and then fled with the army, because a large number of fortifications were built, the Survival League fought and retreated with the help of these fortifications, and the final loss was actually only more than 6,000 people, as for the nitroglycerin that Shu Han wanted to capture, there was no nitroglycerin, but the anti-aircraft gun kept one round, but the shells were gone, It can be said that this battle, although strategically Shu Han was successful, but in terms of results, it was undoubtedly a pyrrhic victory.

However, this is not the time to sigh, after seizing the position on the north bank, Shu Han arranged for people to build bridges on the one hand, and on the other hand, he immediately led the army to attack the surrounding cities, so as not to give them time to prepare, and it would be even more troublesome to attack at that time.

At this time, the Survival League also changed its previous strategy, changing the decisive battle outside the city to the main city defense, abandoning the field area and part of the countryside to ensure the safety of the city, obviously, during the battle for the north bank, the new weapons of the Survival Alliance brought them great, machine guns and modern rifles, when fighting outdoors, undoubtedly much more powerful than equipment such as anti-aircraft guns, although now with the weapon capabilities of the Holy Alliance, skirmishers can be arranged, so that the resistance to machine guns and other equipment can be increased, but there is still not much ability, after all, the power of the machine gun is enough to make the army of the Holy Alliance be beaten into a sieve, so in the end, Qiao Xuan instructed the strategy of holding the city and clearing the wilderness.

For this point, the Holy Alliance has played their usual high efficiency, and the Holy Alliance has expected the attack of the Survival Alliance, so in just one day, most of the village population has retreated to the city, and as for the food and materials that cannot be taken away, they were all burned by a fire, in order to let the Survival Alliance not get anything, as for the loss of these people, Qiao Xuan naturally will not care, as a tyrant, as long as his own interests are not lost, how about the people under his rule, It has nothing to do with him.

And with the tall city walls, and the ultra-long-range artillery made of nitroglycerin, it is indeed a big trouble for the Survival Alliance, several attacks on the surrounding cities, often have to pay several times the strength to be able to cause damage to the enemy, and when attacking, the enemy's commander will take the lead in attacking the artillery positions of the Survival Alliance with the enemy's artillery, which is a huge trouble.

The entire north bank of the Yangtze River of the Holy Alliance, almost all of which are plains, which leads to the fact that the artillery of the Survival Alliance can only be built on the plain, which loses the high suppression of the high ground on the plain, and the cannon of the Survival Alliance is placed on the head of the city, and by virtue of the height, it can shoot farther than the artillery of the Survival Alliance, coupled with the effect of nitroglycerin, so that the firing distance of the cannon is almost twice that of the Survival Alliance's cannon, so before approaching the enemy's city, it will face the attack of the enemy's artillery, and this distance, It was completely possible to allow the enemy to shoot about twice, and many of the artillery pieces could not hold out to the intended position at all, and all of them were destroyed by the artillery of the Holy Alliance.

And no matter how powerful the machine guns and modern rifles are, they are still useless in the face of the city wall more than 30 meters high, the seven cities in the north of the river and the hundreds of fortresses connecting these seven cities have formed a solid defense line, blocking all attempts of the survival alliance outside, and Shu Han has no good way to do this, in the face of such a defense line, he can only fill it with human lives.

But fortunately, the hot air balloon can be reused because of the loss of the enemy's anti-aircraft guns, which allows the survival alliance to use other means to attack the enemy, such as the public opinion offensive, because the survival alliance attack is too fast, so many villagers retreat, almost did not carry too many items, very little money, not to mention heavier food, so the population in the city has increased significantly, but the amount of food has hardly changed.

In the past few years, the Holy Alliance has been fighting almost every year, and a large amount of food and materials have been transported to the front line and become the rations of the soldiers, under this premise, how much stock can be in the city, Shu Han estimates that it will not be too much, so his choice is to besiege, he wants to force Qiao Xuan to have to fight him outdoors, as for the siege, Shu Han gave up, after all, the enemy's defense is too strong, if you want to open such a city, I am afraid that it will never be possible without paying tens of thousands of casualties.