It's reasonable for me to have a two-way foil for a second-level civilization, right?

"Have it!"

In the quiet command center, Lu Yongchang's clapping voice was particularly clear and loud, which attracted everyone to look at him questioningly.

"Yongchang?" Fang Xu asked eagerly, "Do you know how to destroy those 12 land-based laser weapons?"

Lu Yongchang shook his head: "It is too difficult to directly attack land-based laser weapons by crossing the planetary defense network."

The expression on Fang Xu's face gradually changed from excitement to doubt and bewilderment.

The corners of Lu Yongchang's mouth rose slightly, revealing a mysterious smile.

He didn't directly state his plan, but turned his head aside and said, "Zero, how many asteroids are there near us?"

"Or, is there a lot of asteroids in this star system?"

The star map unfolded instantly.

Densely packed tiny red dots appeared in front of everyone.

Each red dot represents a smaller or larger asteroid.

"Zero, roughly estimate the total amount." Lu Yongchang frowned and gave the order again.

The star map began to change, and a gray 3D sphere model gradually took shape in front of everyone's eyes.

The diameter of the sphere grows rapidly.

Ultimately, it settled at a staggering number.

3000 kilometers.

Lu Yongchang nodded thoughtfully: "Is it close to the size of the moon...that's enough for use."

The expression on Fang Xu's face became more and more puzzled.

He thought for a while, and then, as if he had figured out something, he showed a look of sudden realization.

But soon, he frowned again and shook his head slowly.

Perhaps because he felt that there was something wrong with the direction of his thinking, he asked softly, "Yongchang, do you want to push these asteroids to hit Proxima b?"

"It's not going to work."

"Their ring planet defense network is enough to blast these asteroids into dust."

Hearing this, Lu Yongchang was stunned: "Who said I'm going to push the asteroid to hit Proxima b?"

"Let's not talk about the ring planet defense network, it will take a lot of time to push these asteroids."

"We don't have that much time for tricks like that."

Fang Xu also froze in place: "Then what do you mean?"

Lu Yongchang chuckled and said a word: "Smog."

"Smog?" Fang Xu subconsciously repeated Lu Yongchang's words.

"According to our long-distance observations, the atmospheric environment of Proxima Centauri b is much better than that of the Earth, which is why they can use land-based laser weapons." The smile on the corner of Lu Yongchang's mouth became more and more obvious.

"Although we can't solve the land-based laser weapon itself, we can greatly reduce its power."

"With the help of hummingbird mining ships and nanorobots, these asteroids are reduced to extremely fine dust, and then the dust is sent to Proxima b through nuclear bombs."

Speaking of this, Lu Yongchang shrugged: "To put it simply, it is the interstellar version of the smoke bomb."

"However, our uranium-235 reserves are running out." Cao Liangcai's reminder sounded from the side.

Lu Yongchang turned his head to look at the porthole beside him.

Far away from the porthole is a gas giant planet similar to Jupiter.

gas giant planet

"This time, we use hydrogen bombs."

……

0.01 light-years away.

In the deep universe, 750 starships stay in place quietly.

Suddenly, the tails of 250 of the starships lit up with the light of Hall thrusters!

The light gradually brightened.

250 [Glutton] material reserve ships headed straight for Proxima b!

Chapter 282 Interstellar Smoke Bomb

Half a month passed in a flash.

Proxima b.

Central Academy of Sciences.

The old god Augustus was sitting on his chair, gently shaking his short and thick lower limbs.

"How? Haven't the intruders responded to our communication requests?"

When a Lyle in black heard this, he quickly put down what he was doing, and trotted all the way to his side.

"Your Excellency Augustus, during this period, we have sent a total of 109 communication requests, but have not received a single response."

Augustus paused slightly in his leisurely movements.

"Are they still struggling needlessly?"

There was hesitation in Lyle's three pairs of eyes: "Not really."

"Ok?"

Augustus sat up straight, his expression a little dignified: "Then what are they doing?!"

"Those intruders... seem to be waiting for something." Lyle's eyes became even more puzzled.

Augustus didn't speak, he stood up and walked towards the observation room in the distance.

After a few minutes.

Looking at the picture on the monitor, he fell into deep self-doubt.

"Are you sure their fleet has been staying in place for half a month?"

Lyle nodded hurriedly: "That's true, except for the flagship and the supply ship, their battleships have already imposed an all-round blockade on us."

"only……"

Facing Augustus' solemn eyes, this Lyle said cautiously: "It's just that those flagships and supply ships are all gathered together."

"It looks like it's covering something."

"Covering things?" Augustus was stunned, "What can they cover?"

"Can you use optical telescopes to observe those invader starships?"

Lyle tapped the keyboard next to him a few times and called up an image.

"We have tried to observe, but unfortunately, it is very tightly blocked."

Augustus carefully observed the image in front of him.

"Let them go."

The top of August's thought organ showed layers of folds.

"There is only one solid planet in our solar system. Could it be that they plan to rely on those tiny asteroids to fight us for a long time?"

"Just wait, in half a month, we will receive the letter of surrender from the other side."

……

then.

Proxima has had another half month of peace.

【Earth number】.

In Lu Yongchang's office.

"Yutong, how is the mining mission of the gas giant planet going?"

While burying his head in sketching on the holographic image in front of him, he asked Su Yutong in a low voice.

Su Yutong's response came quickly.

"Professor, the collection of deuterium-tritium gas has been completed, and the factory has begun to manufacture hydrogen bombs."

"What about the asteroid acquisition plan?" Lu Yongchang asked again without looking up.

Su Yutong lowered his head and manipulated the holographic projection in front of him.

"It's also in the final stages."

"Most of the hummingbird mining ships have returned."

Lu Yongchang straightened up, stretched out his hand to support his chin, carefully checked the structure diagram in front of him, and nodded: "Very good."

"Help me pass this blueprint to Fang Xu, and tell him to start making smoke bombs now."

"A week later, we launched a general offensive."

Su Yutong's face changed slightly.

While operating the holographic image in front of her, she asked in a low voice, "In such a hurry?"

Lu Yongchang sighed softly: "We spent too much resources to build the factory behind."

"A quick battle is only good for human civilization."

Under Zero's control, the manufacturing task unfolded rapidly.

A robot and a mechanical arm are rapidly manufacturing a new type of equipment needed for a decisive battle - interstellar smoke bombs.

To accommodate more asteroid dust, interstellar smoke bombs are made into balls.

From the outside, the whole smoke grenade looks like the Plus version of the electromagnetic gun projectile.

But its internal structure is very different.

The smoke bomb has a four-layer structure.

The inner core of the projectile is a miniature nuclear bomb removed from the projectile of the electromagnetic gun.

Outside the miniature nuclear bomb is a layer of deuterium-tritium material.

The two make up a simple hydrogen bomb.

Unlike miniature nuclear bombs, the power of hydrogen bombs can theoretically be increased infinitely.

And the method of promotion is also very simple.

It can be done only by increasing the amount of deuterium and tritium.

Compared with the scarce raw materials such as uranium 235, the gas giant planet in the Proxima Centauri star system can provide humans with almost unlimited deuterium-tritium materials!

They can greatly increase the explosion power of this smoke bomb, and make the asteroid dust spread farther!

Outside the structure of the hydrogen bomb, there is tightly compressed asteroid dust.

The diameter of these dust particles is below 1 micron, which is even finer than the so-called PM2.5.

Once the smoke bomb explodes inside Proxima Centauri, these fine dusts will quickly spread in the atmosphere!

Of course, one might ask.

What if these smoke bombs were detonated prematurely by the circumplanetary defense grid, preventing them from entering the atmosphere?

The problem is not big.

Even in interstellar space, these dusts can still play their role perfectly-blocking land-based laser weapons of Proxima Centauri civilization!

A week passed by.

The day to launch the general offensive is coming as scheduled!

In the deep-sea cabin, Lu Yongchang watched the deep-sea liquid gradually overflow his eyes, and silently gave his order.

'All [Golden Crow] battleships, evacuate immediately, and launch a general attack after replenishing their status! '