These small fortresses are really too troublesome, because when they were built, they didn't think about the reason for coming out, so the walls were built to be extremely thick, and what about your thick layer of steel wrapped around the wall, although because of time, this layer of steel can only be said to be extremely rough parallel goods, that is, the kind of virtual welding, but it is enough to resist a lot of attacks by the undead.

Of course, you can also directly use explosives to push over, but later found out that the alliance of the two clans really put some effort, if the amount of explosives is not enough, there is no way to shake these small fortresses wrapped in iron shells on the outside, stacked with a large number of solid rocks inside, and glued with shamanic elemental power, as for self-detonation zombies, although there are also powerful self-detonation types, that is, those self-detonating zombies that do not rely on any poisonous gas, and only rely on the power of explosion to kill and injure the enemy, but they have not been equipped too much.

After all, although many cities have strong walls, there will still be a large area of space for poisonous gas to enter, so even if the city wall is not blown up, it can also kill the enemy by detonating the poisonous gas of zombies, so as to achieve the effect of breaking the city, but this time it is not possible, because the enemy of the undead this time is completely holding the existence of death, so the small fortress only has a few necessary small vents and shooting holes, there are no other ventilation facilities.

Therefore, if you use poison gas to self-detonate zombies, as long as the shooting hole is blocked, these poisonous gases will be helpless to take these coalition forces hiding in the fully enclosed small fortress, after all, you can't get in, then you can still kill people!

Therefore, in the face of these difficult guys, unless a large amount of gunpowder is directly blown into the sky, there is only the latest type of steel diggers, and the steel bodies wrapped under their rotten flesh are the best digging tools, and they are the demolition * relocation of the undead army+Yes, it is a demolition and relocation person who can really play a role comparable to 10,000 troops, but even so, the speed of the undead advancing is obviously much slower, after all, the coalition army in order to stop the undead from advancing too fast, but the whole 3,000 such small explosion fortresses have been prepared, and the speed at which the undead legion demolishes these illegal buildings every day is about 180-210 a day, plus the undead legion itself is not in a hurry, and in the end, these 3,000 fortresses really dragged the undead legion for almost half a month.

Of course, during this period, Wang Fan was naturally not here again, but went to watch the undead elite front army fighting against the fishmen at the bottom of the sea, in fact, this was the first front army-level naval battle of the undead legion, and at other times, it basically relied on the ghost fleet as a puppet machine and the ghost clan who ignored most of the physics.

It can be said that in terms of naval warfare, the undead have not developed this much, although the undead do not need to breathe, but when the strength is weak, the resistance brought by underwater warfare is still very large, so it affects the combat effectiveness very much, as a result, except for the ghosts, everyone else in the undead army has been banned from participating in water battles to avoid unnecessary losses, but now the times have changed!

In order to be able to sharpen the effect, the elite front army does not need to face the enemy on the ground, after all, they are too strong, the level of the holy domain of all members, properly hang those imbecile races, but it is not as good as the real demon demon god legion and the heavenly god legion, so the current elite army is more than the top and more than the bottom, so in order to sharpen, and in order to be able to adapt them to the whole environment to fight, this time the elite front army was sent into the ocean to fight with the fishmen.

The battle in the marine environment, although it saves a lot of trouble because the undead do not need to breathe and eat, but it is still difficult, but fortunately, as the peak strength of the undead composed of all the members of the Sanctuary level, the elite front still has the ability to crush everything, after all, the environment of the ocean only limits their strength by 2-6 percent, the reason why the gap is so big is mainly because of adaptability, after all, just like some people swim fast, some people swim slowly, there is also such a classification in the undead, and when it comes to the strength of the play, the embodiment of this adaptability is more clear！

But fortunately, the opponent that the undead need to face is not a strong one, so even if the adaptability is not strong, resulting in the strength of only about 20% under the normal state, it can still be able to hang up and fight the fishman, and this is also Wang Fan's purpose, through the submarine war of the fishman, hone the water warfare ability of the undead in advance, otherwise if you encounter a marine race that restrains the soul body of the ghost clan in the future, the undead legion will not be blind, as for the ghost fleet, it is actually just an alchemy puppet, but it is just a ship-shaped, but it can't change the essence of the puppet, so the general direction of the attack is okay, but the specific details of the operation, the ghost fleet can't do it!

Therefore, in the army of the undead, Wang Fan thinks that it is necessary to train for water warfare, and Wang Fan has already thought about it, using biochemical weapons at the level of annihilation to clean up a group of fishmen in the fish-man plane, and then open up a road to the largest freshwater lake in the fish-man plane, which is the royal capital of the freshwater fish-man empire, and it is also the best water combat training ground for the undead, after all, since he realized that water war is also one of the necessary training items, how could Wang Fan forget that such a good training ground!

Of course, although the fish people in the freshwater fishman royal court far away in the fish-man plane feel cold in their backs for a while, they can't find out why, don't be surprised, after all, this is the world of magic, Wang Fan's murderous idea of the fishman plane, the fishman can naturally perceive a little malice, but there is no strong man or prophet, and they will not know where the malice comes from, after all, this is already a power involving the rules of cause and effect, which is close to the level of the rules of fate, and the fish-people can touch it. (If the rule of cause and effect is compared to an atomic weapon, then the level of the fish-people is the indigenous people of black Africa, and it is hell to be able to master it!)

And now Wang Fan is in the ocean watching the elite front army attack the fish-man again, don't think that the fish-man has no city, as a race with a good IQ, the civilization of the fish-man in this world has probably developed to the Xia Shang period, so it is not strange to be able to build a city with coral and reef on the bottom of the sea, after all, you can't expect a civilization to drift on the bottom of the sea every day, nomads have their own important cities! (For example, Yue Fei has always planned to directly smash the Yellow Dragon, which refers to the Huanglong Mansion of the Jin people, so the nomads also have cities)