Third, as the territory expands, the depth of the strike array continues to extend, which has far exceeded the original scale. This scale will become larger and larger in the future, but its essential effect will still be the same.

The enemies that can be blocked can be easily dealt with by a few death corridors and arrow towers. Facing the ancient creatures and air force that cannot be blocked, even twenty death corridors and more than a dozen arrow towers are useless.

The more you build the mechanism wall, speed bump, supporting arrow tower, etc., the more you build, the more you get, the more you get, but as the attack intensity continues to increase, the effect becomes less obvious.

Luo Yu believes that he cannot be limited to the glory of the past strike formation. He must constantly change his ideas to achieve better defensive effects.

Times are changing, and defense thinking is also changing.

Now the city wall has been erected, tall and thick, with a defensive effect n times that of the mechanism wall.

The electric shock tower, light energy cannon and stone bead cannon are almost covered with all maps. Once the opponent enters the territory, he will be immediately hit. In this regard, the first-mover advantage of the strike array has been lost.

In addition, the wall of the strike array will block the attack of some stone bead cannons, making this powerful firepower unable to be fully exerted.

Then there is another point: the exit of the strike formation requires heavy troops to deploy defense. Is it really wise to let the One-eyed Dragon and others stay there?

Wouldn't it be better to let them stay on the tall city walls to shoot arrows, throw stones, throw spears, etc.?

Based on various aspects, Luo Yu believes that the strike formation is out of place and he needs to invest all his limited resources into the defense of the city wall.

With so many stone brick repair attack arrays, it is really better to let the stone bead cannon fire a few more rounds, and the effect will definitely not be worse than the arrow tower shooting randomly.

It was such a pleasant decision.

Luo Yu said: "Xiao Jin, I plan to demolish the strike array and place the defensive forces on the city wall. What do you think?"

"Dropped?"

After tilting his head and thinking for a while, Xiao Jin seemed to be unable to understand, so he shook his head and said, "Master, don't ask me, I can't understand..."

Luo Yu laughed, pinched her little face, and began to relocate the defense of the territory.

The first is the Arrow Tower. There are 17 2-star Arrow Towers in the territory. The Arrow Tower belongs to the construction category and cannot be moved easily, but the system mall can move it with money.

And it won't cost much money to move it.

The city wall is 1,000 meters, and the effective killing range of the 2-star arrow tower is actually more than 200 meters. In other words, the real effective coverage range of a arrow tower is about 400.

The arrow tower is 5 meters higher than the city wall and does not affect shooting. Three arrow towers on one city wall can cover the enemies outside the city wall in all directions.

Luo Yu placed three 2-star arrow towers on the south, north and west respectively.

As for the remaining 8 2-star arrow towers, they are all placed on the front, that is, on the east side, to ensure the firepower suppression on the front.

In this way, the era of archery shooting at the beginning ended, and the arrow tower was officially changed from the first defensive facility to a 200-meter close-range defensive building.

After all the arrow towers were transferred, Luo Yu transferred the war fog box to the city. Under the two boxes, the fog completely enveloped the city.

Next is the automatic crossbow arrow.

Luo Yu has a total of 45 automatic crossbow arrows. The range of these automatic crossbow arrows is very close and its power is not very good, but it does not occupy much space.

All 45 crossbow arrows were installed on the city wall to strengthen the firepower within a hundred meters. This thing is still effective in fighting miscellaneous soldiers.

In this way, all the defense facilities in the entire strike array were transferred, and Luo Yu was also very straightforward and chose to demolish the mechanism wall directly.

After dismantling it one by one, it took half a day to dismantle the entire strike array.

More than 2 million stone bricks and 100,000 silver were actually removed. Demolition would cause a large part of the raw materials to be damaged, which shows how much Luo Yu invested before.

The more than two million stone bricks can be said to be timely rain. The defensive floor tiles in the core area of ​​the inner city have been laid in the entire city, while the outer city is still land. It just so happens that a large amount of stone bricks are needed to lay defensive floor tiles, which is not a loss.

Luo Yu put the catapult on the city wall again, and threw it far away. Now the second consecutive catapult can provide a good range output.

Even though he had put so many things, the city wall was still very wide and there was no feeling of congestion. Luo Yu himself wished that the entire city wall was filled with various defense equipment, and there was no place to walk...

In this way, the defense equipment will be relocated.

With a city, there is naturally a moat. The distance between the two was too close and one more needs to be dug out now.

There are many tool people and tool animals that can be excavated in the territory now, and it doesn’t take much time to dig a wide moat.

At the same time, Luo Yu also deeply felt the importance of water elements. At that time, the big octopus can be hidden in the moat and sprayed water, and cooperated with the electric shock tower to form a large-scale inductive power grid, which will have a great effect.

At this moment, the huge building complex on the east side disappeared, leaving a piece of white land.

Luo Yu looked at the empty grassland in front of him, and a faint smile appeared on the corner of his mouth.

Of course, the defense at the entrance to the east would not be given up like this. On the contrary, Luo Yu came up with a good idea.

He plans to lay a trap area at the entrance to the east, and lay it with mixed mechanism floor tiles and speed bumps, slow down one section of the road, and install ground thorns on the other section of the road, which will be effective in both ways.

And the ancient giants wouldn't have smashed the ground, right?

If it is really smashed, let it smash well. Anyway, it’s just a thin layer of floor tiles, let it smash well.

Waste time and die faster.

Thinking of this, Luo Yu started construction directly!

After a while, a trap square of about 2,000 square meters was built, with 1,000 square speed bumps and 1,000 square meters of machine floor tiles interlaced. A iron thorn was buried in every 1 square meters of machine floor drill.

At the same time, the shapes and colors of the speed bumps and the machine floor tiles are almost the same, and you can't tell them if you don't open your eyes.

It is worth mentioning that the silver thorns were used to catch the living mouth before, but now silver is too useful. Just apply iron thorns directly, and it is twice as thick as silver thorns.

Tetanus and other things, because the chance of infection is greatly reduced with the hospital, so there is no need to worry so much.

Luo Yu walked back to the city wall, looked at the trap square in the east, and nodded with satisfaction.

His eyes looked at the anti-aircraft guns again. Without the strike array, the anti-aircraft guns seemed a little lonely. Luo Yu transferred all of them back, and eight anti-aircraft guns were placed on the roof of the small attic on the city wall.

These anti-aircraft guns with a range of 2 kilometers are still useful, and the heat stroke effect is good.

At this moment, all the defense facilities are done.
Chapter completed!