Up to this point, this star system siege had already lasted for more than a month. War in the interstellar era is different from war on a planet's surface. In interstellar warfare, soldiers can rest in place inside their ships and rotate through combat while inside their ships. This is the Pegasus Civilization's mode of operations. As for Xiao Yu, there is even less to say. Xiao Yu does not need rest at all.

Therefore, during this one month, the fighting had continued without a pause. In this period, because of the Blood Blade Squad's involvement, the situation on the battlefield had continuously developed in a direction favorable to Xiao Yu. Xiao Yu believed that if things continued as they were, in at most three months he could win the entire war. Victory was already in sight.

Yet in Xiao Yu's heart there was a slight disappointment.

"It seems you have no response. I overestimated you. I even thought you might give me a little surprise." Xiao Yu sighed slightly and once again focused his attention on the battle.

But at that very moment, Xiao Yu made an unexpected discovery.

Even though the fight was at its fiercest and the star system's interior had the Pegasus Civilization's most rigorous defensive arrangement. A defensive arrangement that made it impossible for any of Xiao Yu's detection instruments other than the Blood Blade Squad to enter the inner system to obtain intelligence, an event was transmitted by means of visible light and gravity. These two means could not be hidden from him.

Within the star system's interior, the Blood Blade Squad, which was wantonly harassing the Pegasus Civilization's fleet, also keenly perceived this astonishing phenomenon.

In the void before Xiao Yu, within this stellar system, a bright star suddenly appeared. Its brightness increased rapidly, and within just a few minutes it surpassed the star of this stellar system entirely, glittering in the cosmic void, very beautiful.

"What is that?" Xiao Yu was startled. He immediately began observing this point of light by various detection means. At the same time, he drew more than a dozen ships from the Blood Blade Squad to approach this light.

It was the Pegasus Civilization's capital planet. For some unknown reason, within a few minutes this planet suddenly erupted with such intense light that it was even brighter than the star.

"What is going on? What is the Pegasus Civilization trying to do?" Xiao Yu speculated in his heart and could not help becoming excited. "So there is a surprise for me. Is this the Pegasus Civilization's method of responding to the present situation? Let me see what exactly you intend to do."

All channels of detection rapidly reported much information to Xiao Yu. By analyzing this information, he quickly reached a conclusion.

"So that is how it is, so that is how it is." For the first time, Xiao Yu's spirit grew solemn. The present situation was outside Xiao Yu's expectations. It was beyond what he had considered. Xiao Yu discovered that he was wrong. The situation created for the Pegasus Civilization after the Blood Blade Squad's deployment was not, as he had supposed, a deadlock. There was still a way to break this formation.

Xiao Yu knew that the Pegasus Civilization had now found this method and had begun to implement it.

The dilemma Xiao Yu had created for the Pegasus Civilization was precisely that. The key of this dilemma lay in the fact that no matter what the Pegasus Civilization chose, whether to ignore it or to detach forces to defend the rear, they could not change the general situation. This situation arose from the Blood Blade Squad's continual harassment of the Pegasus Civilization's logistics and supply line and its various large interstellar fortresses.

Xiao Yu believed that to prevent the Blood Blade Squad's harassment, detaching forces to defend the rear was the only way. But now Xiao Yu knew he was wrong. Aside from detaching forces from the front to protect the supply line and interstellar fortresses, there was another method.

During the period of preparing for war, the Pegasus Civilization had constructed a large number of heavy-industry facilities on the capital planet. These heavy-industry facilities were the heart that sustained the civilization's war effort. At every moment, vast quantities of materials were transported from the capital planet to the front. The distance from the Pegasus Civilization's capital planet to the front of the war was their supply line. An important task of the Blood Blade Squad was to strike and harass this supply line.

Now, the Pegasus Civilization had taken a step entirely beyond Xiao Yu's expectations. Xiao Yu knew that by this method the Pegasus Civilization, without detaching forces from the front to defend the rear and while maintaining pressure at the front, had preserved the smoothness of the supply line and made it impossible for the Blood Blade Squad to continue harassing the line.

Xiao Yu knew why the Pegasus Civilization's capital planet was emitting such a brilliant light.

It was the light of planetary engines. At least tens of thousands of planetary engines had ignited simultaneously, forcibly halting the capital planet's rotation and then pushing it directly toward the front.

If there is no way to ensure the stability of the supply line, then simply move the supply base to the front. In this way, the so-called supply line would not exist at all. How could Xiao Yu continue to harass it.

Moreover, Xiao Yu was certain that there must be an extremely vast offensive force on this planet. This was equivalent to a gigantic war fortress constructed with a planet as its core, and it could even move. Such a colossal target was not something a mere few hundred small Level 6 Civilization ships could take down.

In other words, wherever this planet arrived, not only would the supply line no longer be a concern, but even the various giant interstellar fortresses and interstellar turrets could be protected. Xiao Yu had already lost the ability to attack these targets.

Xiao Yu had never imagined that the Pegasus Civilization would adopt such a method.

"Very well, this method truly is effective." Xiao Yu could not help but smile bitterly. "But do you really not care how enormous the damage to your capital planet will be."

Xiao Yu was very familiar with things like planetary engines. He himself had built them many times. But those were built on uninhabited planets, and Xiao Yu did not have to worry too much about the planet's ecological environment or the stability of its tectonic plates. This planet, however, was different. One must know this was the Pegasus Civilization's capital planet. On this planet there were countless key heavy-industry facilities and countless citizens of the Pegasus Civilization. Most importantly, this planet was the birthplace of their entire civilization, the homeland of their entire civilization.

There is no doubt that something like planetary engines would cause very serious impacts to a planet. Even if, through extremely precise design, the influence of planetary engines on the planet's overall structure were minimized, planetary engines still must eject propellant to generate thrust. This means planetary engines would have extremely vast exhaust plumes. These plumes would be at very high temperatures and contain many baffling chemical substances. Ejected into the atmosphere, they would even increase the temperature of the entire atmosphere and the entire planet and change the structure of the entire atmosphere. This would be a devastating blow to a planet's ecological environment.

The Pegasus Civilization sacrificed the ecological environment of its own planet and even risked damaging the planet's overall structure, resolutely taking such a step. This step not only neutralized the crisis they faced, but once again placed the initiative in their hands.

Xiao Yu's spirit grew heavy, and for the first time he began to truly face the opponent before him. Because Xiao Yu discovered that the situation had changed. If he was not careful, with only a slight negligence, he really could face the risk of defeat.

One must know that out in deep space there were still several million Pegasus Civilization ships wandering. Because they were badly damaged or their spirits had collapsed, they had not joined the present war. If Xiao Yu failed, even once would suffice. The spirits of those wandering ships would coalesce and they would join the present war. Facing only the Pegasus Civilization's current fleet had already forced Xiao Yu to bring out almost all his strength and even deploy the Blood Blade Squad. If several million more ships suddenly appeared, how could Xiao Yu possibly cope.

Xiao Yu could not fail, not even once, because he could not afford to lose.

"I must think of a way to eliminate this planet." Xiao Yu thought silently. "But there is one thing that is very hard. This planet is behind the entire Pegasus Civilization defensive line and provides firm support to that defensive line. To take out this planet, I must break through the Pegasus Civilization's defensive line, and to break through the Pegasus Civilization's defensive line, I must take out this planet's support for the defensive line. This is a paradox. The two depend on each other and have created this contradictory situation for me."

The present situation was very bad. It was as if Xiao Yu had to open a lock, but the key to this lock was locked inside the lock itself. To open the lock he had to take the key, and to take the key he had to open the lock first.

Perhaps he could use brute force to open the lock without the key, but Xiao Yu did not have the ability to smash through the Pegasus Civilization's defensive line by force, unless he used the Sphere of Death. The three Continent-Class ships under Xiao Yu's command, blocked by innumerable Pegasus ships, could not advance at all.

"The Sphere of Death absolutely cannot be used here. A Level 5 Civilization is not worthy of my wasting something as precious as the Sphere of Death. Then what method should I use? The lock, the key, the defensive line, the planet…" Xiao Yu murmured, thinking rapidly in his mind.