Nine Hundred and Seventy-Three Vital Points

The fleet's bombing operation went very smoothly, but Gao Kai thought that the aliens' non-resistance made the fleet very passive, because all the enemies fled underground, and it was difficult to turn over the underground bunkers hidden in the dark by bombing. It was not much different from wasting artillery shells to just blow up the ground buildings.

If the underground bunkers could be accurately located, at least some damage could be caused to the enemy.

However, the situation was not as smooth as Gao Kai thought. When the fleet flew to the front of Callisto, it suddenly found that a crater was a bit strange.

Several warships noticed the crater at the same time, and they all pointed their cameras there, and accidentally found that there was an oversized chrysanthemum gate at the bottom of the crater.

The observers immediately realized that it was the place where the alien warships entered and exited Callisto, and quickly reported the situation to the flagship.

Gao Kai was stunned when he received the news. No matter how hard he tried, he could not imagine that huge warships could also enter and exit through the chrysanthemum gate. Such a large chrysanthemum gate was installed in the crater, just like a chrysanthemum growing on Callisto.

Gao Kai felt a chill and dared not think any further. He decisively ordered the fleet to concentrate fire and knock out the aliens' underground base first. Under the oversized chrysanthemum gate, there must be the aliens' nest on Callisto.

The airstrike artillery fire paused for a moment because of Gao Kai's order. All the warships adjusted their positions at the same time and aimed their guns at the crater.

At Gao Kai's command, all the warships opened fire at the same time, and shells fell into the crater one after another.

He was not sure whether the base under the chrysanthemum gate was the aliens' base, otherwise they would not be hitting the shells, but directly throwing nuclear bombs on it.

The first round of shells landed in a blink of an eye. The shells that fell outside the chrysanthemum gate immediately exploded into dust all over the sky, while the shells that hit the chrysanthemum gate accurately did not cause any ripples, and penetrated the chrysanthemum gate silently like a sharp knife cutting butter.

The warship immediately detected gas at the bottom of the crater, but with the chrysanthemum gate blocking it, no one knew what would happen after the shells penetrated the chrysanthemum gate, and the chrysanthemum gate did not shrink like a balloon.

An idea immediately flashed through Gao Kai's mind. Since this thing is alive, it would be useless to only pierce a few holes. It must be injured in the vital parts or exceed a certain limit to cause the chrysanthemum gate to leak.

"Continue!" Gao Kai said without hesitation.

At this moment, the ground of a small plain near the crater suddenly turned over from below, and dozens of thin lights shot up into the sky. The warships that were about to fire were immediately hit. On average, each warship was hit by several thin lights.

The accident happened too suddenly, and no one had time to react. When the helmsman subconsciously avoided it, the thin light had hit the warship.

Everyone's heart jumped to their throats, but they were just startled. Gao Kai quickly ordered the fleet to retreat, and asked about the situation of the warships while retreating.

Fortunately, all the warships were fine, with only minor scratches at most.

Gao Kai breathed a sigh of relief and was also very grateful.

The fleet's luck was both accidental and inevitable. The inevitable reason was that the fleet's altitude had been stuck at 700 kilometers, just beyond the range of the fine light, and the bow with the thickest armor was facing Callisto; the accidental factor was that the aliens dispersed their firepower. If all the fine lights were concentrated on one target, the consequences would be unpredictable.

While he breathed a sigh of relief, Gao Kai, who was still in fear, was furious and pointed at the plain on the screen and roared: "Bomb it flat for me!"

The fleet immediately fine-tuned the attitude of the warships and aimed the electromagnetic gun at the plain. As soon as the shells were fired, Gao Kai called the combat staff and issued a separate order to launch a nuclear bomb at the crater.

Nuclear bombs are either launched by missiles or ordinary naval guns. They have nothing to do with electromagnetic guns, and there is no need to adjust the attitude, which does not affect the fleet's bombardment of the plain.

A nuclear shell was immediately loaded into the gun barrel, and the turret turned rapidly. With the assistance of the fire control system, it was accurately aimed and fired quickly.

The aliens were not to be outdone. Thin beams of light came from the small plain one after another. The two sides engaged in an artillery battle at a distance of more than 700 kilometers.

The aliens' counterattack was fierce, but air-to-ground had a natural advantage, and the thin beams had a limited range, so the threat to the fleet was pitifully small.

Human artillery shells had no such problem. They fell on the plain one by one, and soon killed several giant insects.

That's right, it was a giant insect. The thin beams were not emitted from mechanical equipment, but from a special insect. Anyone who saw this scene couldn't figure out how the aliens transformed the insects into living weapons.

What's more, thinking of the thin beams on the alien warships, how did the aliens press the insects onto the warships?

The shells fired by ordinary naval guns were too slow. After a long time of fighting, the nuclear shells on the other side fell into the crater and hit the chrysanthemum gate squarely, triggering the fuse.

The chrysanthemum gate could not stop the tungsten alloy shells of the electromagnetic gun, but it could stop the nuclear shells fired by ordinary naval guns. As a result, the shells failed to hit the ground as Gao Kai planned, and they were directly detonated outside the chrysanthemum gate.

The nuclear bomb exploded instantly, and the strong flash illuminated the world. The flames suddenly rushed out of the crater, like a super volcano suddenly erupted. The surroundings of the crater shook violently, and the flames rushed to the sky tens of kilometers high. The thin light on the plain was interrupted on the spot.

The fleet took the opportunity to increase its firepower and destroyed the air defense positions on the plain in a short while.

At this time, the nuclear explosion in the crater was also coming to an end, and the situation inside could be barely observed.

The surface material inside the crater had been melted by the nuclear explosion, and molten material like magma could be seen flowing slowly along the mountain everywhere.

The chrysanthemum gate at the bottom had completely disappeared, leaving only a large charred hole. It was pitch black and nothing could be seen clearly.

The battle was suspended because of the nuclear explosion. Gao Kai first ordered a flare to be fired into the cave, and then told Lu Zuo to notify the landing troops on the back of Callisto to be careful of the ambush under the plain.

It was still the same naval gun just now, but the nuclear bomb was replaced by a flare. After the shell was fired, it went straight east to the cave. Under the precise calculation of the fire control system, it still accurately fell into the crater after flying over 700 kilometers. The whole process lasted four minutes.

A blazing white light suddenly illuminated the bottom of the pit, and it fell down along the huge cave that went straight up and down, until it suddenly went out after a few seconds when it hit something.

There was silence in the bridge, and Gao Kai looked tangled: "Another nuclear bomb, hit it more accurately!"

There was probably an alien warship in that hole, and Gao Kai didn't want to leave hidden dangers for the warships left in Callisto.

The third shell was fired and turned into a stream of light falling into the hole. The fleet continued to wait in orbit. After nearly four minutes, the stream of light that the shell turned into finally entered the hole.

The stream of light flashed and the bottom of the hole returned to darkness, but only a short moment later, a strong light suddenly rose from the bottom of the pit.