Even though Shen Yu didn't know much about technology, he could still understand such a simple example.

Moreover, the example was simple, but its actual application was by no means straightforward.

"In interstellar warfare, being small in size and big in power is the main development trend." At this moment, interstellar world Shen Yu was indeed quite delighted, and he even explained a few more points, "The main cannon of a large battleship, although powerful enough, is also very difficult to defend. In interstellar warfare, it is very easy to be focused down..."

After a few more brief explanations, Shen Yu more or less understood.

Without wormhole-type attacks or hyperspace pinpoint strike methods, one characteristic of interstellar warfare is that flight speed and attack speed are about the same.

When everyone races, they can all reach faster-than-light speeds; at best, their offensive measures are only about as fast, sometimes even slower. This means that in mobile warfare, at long distances, neither side can hit the other; only when the relative distance is a few light-seconds, at most a dozen or so light-seconds, can they score a hit.

In this case, aside from hard defensive power, the smaller the size, the greater the advantage.

But too small in size often leads to weapon attack power being insufficient.

Unable to break the enemy's defenses.

Just this explanation alone was enough for Shen Yu to fully grasp the importance of this material.

"Plus, its defensive capabilities are also extremely impressive. To be blunt, if there's enough of this material, we can fully upgrade the fighting strength of our interstellar battleships by an entire tier." Interstellar world Shen Yu emphasized, "That's not just my personal opinion; it's the joint conclusion of the Goddess of Hope and many scientists."

"Are these bronze monsters capable of reproduction?" Shen Yu frowned slightly.

"No, they just get stronger with every kill, but their numbers are fixed." Interstellar world Shen Yu shook his head slightly. "So I can only use Gray Mist, and the consumption is huge."

What is the Gray Mist used for?

To find the method for crafting this material!

It requires consuming a very rare energy, but this energy can be extracted from the bronze monsters; in other words, it's still possible to manufacture bronze material by cultivating bronze monsters.

Of course, due to the limited number of bronze monsters, the production efficiency is doomed to be low.

But to forge a legion that plays a critical role, it's already enough.

Upon hearing this, Shen Yu also understood the purpose of interstellar world Shen Yu's urgent notice.

"I'll immediately send a message to the Second Parallel Universe: stop killing bronze monsters, capture all of them alive!"

Some had been killed before, but that was without knowing their value; now that he understood, of course, as many as possible should be kept alive.

"I've almost exhausted my Gray Mist, but we are preparing for the next counter-offensive." Interstellar world Shen Yu breathed a slight sigh of relief, and even started to look forward to it. "These special bronze weapons are sure to give the Void Spirit Race quite a 'surprise' in the next battle."

The Void Spirit Race had fled directly before, and although it's still unclear whether they have any backup plans, now that they've gotten hold of this material, pursuit must continue.

Moreover, the Martial Arts Legion can also be deployed to the front lines in limited form.

It's fair to say that not only in the real Shen Yu's world, but the interstellar civilization's power increase in this period hasn't lagged in the slightest.

"If you need help, just say it." Shen Yu also spoke up, "Even on this kind of interstellar battlefield, the power of a Fifth Stage Mage can be quite useful."

"Good!" Interstellar world Shen Yu did not stand on ceremony.

Actually, Shen Yu was still being modest.

Just a Fifth Stage Mage alone, even with divine-level power, might not be able to make that much of a difference on a battlefield of this scale.

However, paired with Gray Mist, it's a whole different story.

No matter if it's the Void Spirit Race army or the bio-warships—

Just use Gray Mist to teleport right into the enemy's center, then go on a killing spree, simple as that.

As long as there's Gray Mist, strengths can be maximized and weaknesses avoided with ease.

"This time, we're going to completely retake the Wutun Factory!" Interstellar world Shen Yu left these words, then vanished into the Gray Mist, already returning to his own world.

At this moment, the Wutun Factory had actually already regained thirteen planets.

These days, the Void Spirit Race had shown a completely non-resistant posture.

If the Human Civilization's army didn't move in, they continued to hold those couple of planets, but whenever a small Human Civilization legion arrived, they would come out for battle.

Yet as soon as a large Human Civilization force advanced, the Void Spirit Race's bio-legions would pull back immediately.

"They're trying to delay us from retaking Wutun as much as possible."

The core Human Civilization command group grasped this intelligence easily.

Realizing this, the Goddess of Hope and the core command group immediately shifted larger armies from other regions, exerting military pressure and frantically reclaiming territory.

That's how they managed to take back eleven industrial planets in such a short time.

However, these industrial planets won't resume production so quickly; many places need to be repaired from the ground up.

Once everything is fixed and running, Human Civilization's industrial capacity will inevitably recover on a large scale.

But all of Wutun altogether has more than a hundred industrial planets!

That's the main bulk.

After returning to his own world, interstellar world Shen Yu did not pause, heading straight to another location.

This was a confidential meeting.

All the highest commanders from the Wutun front—five in total—were already gathered here.

These five are now among the very top military commanders of all Human Civilization.

All of them are aware of interstellar world Shen Yu and the Association's existence.

Otherwise, they would never risk gathering in person like this; the presence of interstellar world Shen Yu guarantees their safety here.

At this moment, interstellar world Shen Yu strode inside.

The five were still locked in non-stop discussion of operational details.

Only when interstellar world Shen Yu arrived did they finally stop and look towards him.

"I've already coordinated with allied members; all bronze monsters will be delivered within two days." As soon as interstellar world Shen Yu spoke, everyone present nodded.

"That way, our battle plans can be more aggressive." The only female commander among the five spoke up.

Though a female commander, in fact, her body had already undergone extensive modification.

Over ninety-five percent of her biological form had been replaced.

She'd completely abandoned normal human aesthetics—everything is for safety.

The other four commanders, except for Xiu'Er who was disguised as a regular soldier, were similar.

After all, what they really needed was only their brains, the spiritual intelligence born from their biological brains.

Anything else was of little value.

"Besides that, I can bring in help from three more Gray Mist Walkers." Interstellar world Shen Yu spoke again, "We all became Level Two Association members at about the same time, so our powers are similar. We can easily carry out decapitation strikes on the enemy's cores in four locations. Of course, inviting them comes with a cost."

"Pay it!" Commander Xiu'Er immediately spoke up.

He was probably the only one of the five who'd ever commanded a battle with Gray Mist Walkers.

The others all nodded as well.

No matter what the price is, it's absolutely worth it.

The sooner Wutun Factory is retaken, the greater the benefit.

"That just leaves the final thing to discuss," said a burly commander, "How many resources do we need to allocate to guard against whatever means the enemy is preparing for."

The room fell silent.

That included interstellar world Shen Yu.

Indeed, everyone was clear about one thing—the Void Spirit Race's stalling tactics obviously mean they're preparing some other move, biding their time.

Otherwise, there's no point in delaying.

If they didn't intend to try retaking these Wutun Factory planets, the Void Spirit Race should have just fully retreated by now.

The problem now is, they know far too little about whatever this means is.

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