"Finally back......"

Stepping back into the lunar base, Zhao Yu breathed a sigh of relief, staying on the spaceship, there was always a sense of unease.

"Sir, welcome back!"

Uncle Da took the remaining nine androids and stood at the entrance of the base to greet them.

Zhao Yu smiled, and after chatting with a few people for a while, he went straight to the base control room.

According to the list given by Uncle Da, the more than 25,000 technology points in his hand were consumed.

[Base: Level 1]

[Experience: 100100/100000]

[Experience points are full, is it upgraded?] 】

"Yes!"

【Upgrade Successful!】 】

[Base: Level 2]

[Experience: 100100/300000]

[Note: The current level can add a movable sub-base]

The location of the sub-base has been planned for a long time, and Zhao Yu directly chose a mothership parked on the moon as the sub-base.

In this way, even if the moon base is destroyed, there will still be a mothership that will be able to continue the system technology.

After reaching level 2, the seven basic sciences that were originally stuck at 1.99 and could not be improved have all become upgradeable.

Zhao Yu checked it, and the cost of improving the seven basic sciences increased, becoming 0.01 hundred technology points per increase.

To increase the 7 basic sciences to 2.99, a total of 70,000 technology points are required.

Correspondingly, the amount of XP required to upgrade from a level 2 base to a level 3 base has also been increased, to 200,000.

Zhao Yu took a brief look, then opened the exchange list, wanting to see the technology points required by the particle black hole, but he looked around and didn't find it.

"It should be that the level of the seven basic sciences is too low......"

Raising the base level to level 2 only means that he can exchange all the technologies below 2.99 through technology points, but the preconditions for each technology still exist.

After glancing at the technology points at hand, there were only 300 points left, Zhao Yu thought about it, and found the newly exchanged life science products recently.

I asked the system one by one, and after deducting the upgrade costs of various types of research institutes, I could return about 15,000 technology points in total.

"Fifteen thousand technology points, it's enough for ...... for the time being"

Zhao Yu left the control room, planning to discuss with Uncle Da how to upgrade next to maximize the benefits.

……

"The Pangea civilization has a peri-Martian orbital defense ring, all of which are composed of base points equipped with laser systems......"

"We can't directly attack the Blue Star ...... until we break this defensive circle."

"Therefore, the early goal should be to break through this layer of defense......"

Near Pluto, on the Moro mothership, many captains held their own battle plans and discussed with Moro.

"The laser defense system is one of the few means that can resist the attack of a level 2 civilization with a level 1 civilization technology level......"

"The advantages are obvious, the speed of light reacts, and the energy cannot be broken through until the ......energy is exhausted."

"The disadvantage is also obvious, as long as the energy of the base point is exhausted, this defense system will be considered useless......"

"A full-scale offensive is not desirable, too much energy is required......"

"So, I suggest that before the fleet departs, launch a massive attack on the Wraithfire point, and consume the energy of all the base points in this area......"

On the three-dimensional star map, the Pluto fire point is on the left side of the midline between Pluto and Blue Star, and it will coincide with the midline in about 25 Earth days, which is the shortest distance for the Moro fleet to rush to the first line of defense.

"When our fleet arrives, the energy of the base point where the Hellfire Point is located is almost exhausted, and we can take this opportunity to break through the ...... in one fell swoop."

"As long as you break through this layer of defense and send a few shuttle ships in, this war will be over!"

Moro held the simulator on the side, kept pressing it, and every time the simulation resulted, it was a big victory, and the biggest loss was only five shuttles.

"Okay, let's follow this tactic!"

Moro pushed away the simulator, stood up, and said in high spirits: "Seth and Miro have made meritorious contributions to exploring the enemy, and they are appointed as the commander and deputy commander of the vanguard army this time......"

"Lead the 2nd, 4th, 5th, 8th, 9th, and 10th fleets to fight at Hellfire Point......"

"In view of the distance between the front line and the mothership, and the inconvenience of communication, you are given the power to adapt to the situation and decide on your own combat operations without notice......"

"The remaining 3rd, 6th, and 7th fleets, with full firepower, attack the ...... of the Dark Fire Point"

"Industrial ships and resource ships go to Pluto to carry out logistics and supply work......"

"Now, I announce that the operation to destroy the civilization of the solar system has officially begun!"

"Go to war!"

With Moro's order, the entire fleet was completely moved.

After dozens of warships were fully prepared, they jumped out and flew towards the line of fire.

The rest of the battle fleet, each scattered, poked out the muzzles of different calibers, aimed at the line of fire, and launched an attack.

……

"Sir, something is wrong!"

At the moon base, Zhao Yu had just finished trading with Yue'an City, recovered 15,000 technology points, and was about to go to the control room to exchange technology, when he was stopped by Uncle Da.

"What's wrong?!"

"The Moro fleet has launched an attack on us!"

"What?!"

Uncle Da showed the gravitational wave detector and said, "More than sixty Moro warships have left Pluto and are rushing towards the first line of defense......

"In addition, the dozens of warships left behind have released a large number of attacking ...... to our first line of defense."

"They did it so quickly!!"

Previously, the spaceship on Jupiter was captured, and for many days, the Moro fleet did not move, making Zhao Yu feel that the other party might not make a move in the short term.

Who knows, it didn't take long for the attack to come, and as soon as it was moved, it was all out.

"They did not directly attack the base point range where the Eighth Military Base was located, but attacked the defensive line where the Fifth Military Base was located......"

"According to calculations, they want to consume the energy of the defensive line where the fifth military base is located, and when the more than sixty warships arrive, they will break through and enter the ......."

The star map shows that when the enemy ships arrived 25 days later, the defensive line where the 5th military base was located was exactly on the center line of the Stygian Fire, which was the shortest distance.

"Can we stop the first wave of attacks?"

"Yes, but judging by their appearance, the attack should not be interrupted for the next 25 days......"

"It only takes 15 days, and the energy replenishment rate of the Fifth Military Base will not be able to keep up with the consumption rate......"

"At that time, it will be necessary to use the permanent warships of the fifth military base......"

"But the warships we left there were designed in the early days, most of them were destroyers, battleships, etc., and there were only a hundred frigates that could really resist the attack......"

Zhao Yu hurriedly asked, "Is it too late to send the corvette of the base over now?" ”

"In time, with full firepower, in about 4 days, the frigate will be able to reach the front line......" Uncle Da nodded, but soon said worriedly: "The enemy still has sixty battleships rushing to the front that have not fired, once they arrive, if they suddenly break out, our defense line will easily be lost......"

"How many frigates are there at our base now?!"

"After the arrival of the Moro fleet, the base began to explode, in the early stage, it was to produce various types of warships in proportion, and in the later stage, only after it was found that the frigates could effectively defend, they began to produce frigates in a single ......"

"The total number of frigates existing at the base is about 150,000......"

"All the troops are sent over to support the fifth military base, and the first line of defense must be defended!"

"Yes!"

After Uncle Da finished speaking, he said: "Sir, the first line of defense is far away from us, and the time for the round-trip communication is close to 15 minutes, and the command is inconvenient, so I suggest sending someone over to supervise the battle......"

"Who do you think is the right person to send?"

"Li Zongheng, he has been the head of base security for a long time, he has a lot of experience, and he should be able to do the job......"

"Okay, then let Li Zongheng go over and sit at the fifth military base!"

Uncle Da then said: "Sir, some of the resources in our base are not enough to make rare earths for frigates, and we need to obtain ...... from Blue Star."

The Moon Base now has more than five billion Blue Moon Coin equivalent resources in reserve, and if it is all used to build destroyers, battleships, and transport ships, even if it is 500,000 ships, it will be no problem.

However, some of the rare earths needed to build the frigate can only be obtained from Blue Star, and the reserves of rare earths are about to be depleted.

"Then mobilize resources from the Blue Star, don't care about whether it will be discovered by the Blue Star people, all the Xiaotian will be sent out, and make every effort to mine resources to ensure that the frigate production line cannot be stopped......"

"The longer this battle lasts, the better the chances of us turning defeat into victory......

(End of chapter)