The bombing operation of the fleet was very smooth, but Gao Kai thought that the non-resistance of the aliens made the fleet very passive, because the enemy fled all underground, and it was difficult for the bombing to turn over the underground bunkers hidden in the shadows, and just blowing up the ground buildings was not much different from wasting shells.

If you can accurately locate the underground bunker, you can at least inflict a little damage on the enemy.

However, the situation did not go as smoothly as Gao Kai thought, and when the fleet flew directly above the front of Ganymede, he suddenly found a crater that was a little unusual.

Several warships noticed the crater at the same time, and invariably pointed their cameras there, and unexpectedly discovered that there was an oversized chrysanthemum gate at the bottom of the crater.

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

Gao Kai was stunned when he received the news, he couldn't have imagined that the huge battleship could also enter and exit through the chrysanthemum gate, and such a large chrysanthemum gate was installed in the crater, just like Ganymede growing a chrysanthemum.

Gao Kai felt a chill and didn't dare to think about it anymore, so he resolutely ordered the fleet to concentrate fire and shoot, and first knock out the aliens' underground base - under the oversized chrysanthemum gate, it must be the aliens' lair on Callisto.

The artillery fire of the air attack was halted for a moment by Gao Kai's order, and all the battleships adjusted their positions at the same time, aiming their guns at the crater.

At the sound of Gao Kai's order, all the battleships opened fire at the same time, and the shells fell into the crater one after another.

He wasn't sure if it was an alien base under the Chrysanthemum Gate, otherwise it wouldn't be a cannonball, but a nuclear bomb thrown directly at the top.

The first round of shells landed in a blink of an eye, and the shells that fell outside the Ju Gate exploded into the dust, and the slightest wave that accurately hit the Ju Gate did not appear, and it silently penetrated the Ju Gate like a sharp knife cutting butter.

The battleship immediately detected the gas at the bottom of the crater, but there was a chrysanthemum gate in the way, and no one knew what happened after the cannonball penetrated the chrysanthemum gate, and the chrysanthemum gate did not shrink like a balloon.

A thought immediately flashed in Gao Kai's mind, since this thing is alive, then it may be useless to only wear a few holes, it must hurt the vital point or exceed a certain limit, which will cause the chrysanthemum gate to leak.

"Go on!" Gao Kai said without hesitation.

At this moment, the ground of a small plain near the crater suddenly opened up from below, and dozens of fine lights rose into the sky, and the battleships that were about to fire were shot when they boarded, and each battleship received several fine lights on average.

The change happened so suddenly that no one had time to react, and by the helmsman subconsciously evading it, the fine light had already hit the battleship.

Everyone's hearts jumped to their throats at once, but they were only startled, and Gao Kai hurriedly ordered the fleet to retreat, asking about the situation of the battleship as he retreated.

Very lucky, all the battleships were fine, at most minor scratches.

Gao Kai breathed a sigh of relief and was also glad.

The fleet's luck was both accidental and inevitable, and the inevitable reason was that the fleet's altitude had been stuck at seven hundred kilometers, just beyond the range of fine light, and it was the most heavily armored bow facing Ganymede; The accidental factor is that the aliens disperse the firepower, and if all the fine lights are concentrated on one target, the consequences are difficult to predict.

While breathing a sigh of relief, Gao Kai, who had palpitations, was angry, pointing to the plain on the screen and roaring: "Flatten it for me!" ”

The fleet immediately fine-tuned the attitude of the battleship, aimed the electromagnetic cannon at the plain and fired, and as soon as the shell was discharged, Gao Kai called the combat staff officer and gave a separate order to launch a nuclear bomb at the crater.

Nuclear bombs are either launched with missiles or ordinary naval guns, which are not at all compatible with electromagnetic guns, and there is no need to adjust the attitude, so as not to affect the fleet's bombardment of the plains.

A nuclear shell immediately filled the chamber, and the turret spun rapidly, aiming with the assistance of the fire control system, and then firing quickly.

Not to be outdone, the aliens came from the small plains one after another, and the two sides fought an artillery battle at a distance of more than 700 kilometers.

The alien counterattack is not not fierce, but the air-to-ground has a natural advantage, and the fine light range is limited, and the threat to the fleet is pitifully small, but the human shells have no problem with this, one by one fell on the plain, and killed several giant insects in a short time.

That's right, it's a giant bug, the fine light is not emitted from a mechanical device, but by a special kind of bug, anyone who sees this scene can't figure out how the aliens transformed the bug into a living weapon.

What's more, I thought of the fine light on the alien battleship, how did the aliens press the worm onto the battleship?

The speed of the shells fired by ordinary naval guns was too slow, and you and I fought back and forth here for a while before the nuclear shells over there fell into the crater and smashed on the chrysanthemum gate impartially to trigger the fuse.

The chrysanthemum gate could not block the tungsten alloy shells of the electromagnetic cannon, but it could block the nuclear shells fired by ordinary naval guns, and as a result, the shells failed to smash into the ground as Gao Kai planned, and detonated directly outside the chrysanthemum gates.

The nuclear bomb exploded in an instant, a strong flash of light illuminated the heavens and the earth, and the flames suddenly rushed out of the crater, like a super volcano suddenly erupting, the crater shook violently around it, and the flames rushed into the sky dozens of kilometers high, and the fine light on the plain was interrupted on the spot.

The fleet took the opportunity to intensify its firepower, and in a short time destroyed the anti-aircraft positions on the plain.

At this time, the nuclear explosion in the crater was also nearing the end, and it was barely possible to observe the situation inside.

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

The chrysanthemum gate at the bottom has completely disappeared, leaving only a large charred hole, and nothing can be seen clearly in the black hole.

The battle was suspended due to the nuclear explosion, and Gao Kai first ordered a flare to be fired into the cave, and then told Lu Zuo to inform the landing force on the back of Ganymede and tell them to be careful of the ambush under the plain.

It was still the same naval gun just now, but the nuclear bomb was replaced with a flare, and after the cannon was ejected, it went straight east to the hole, and under the accurate calculation of the fire control system, it still accurately fell into the crater after flying more than 700 kilometers, and the whole process lasted four minutes.

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

There was silence in the bridge, and Gao Kai's face was entangled: "Another nuclear bomb, be accurate!" ”

It was likely that there were alien warships in that hole, and Gao Kai didn't want to leave a hidden danger for the battleships left behind on Ganymede.

The third cannon was ejected and fell into the hole in a streamer, and the fleet continued to wait in orbit, and it took nearly four minutes for the cannonball to turn into a streamer before burrowing into the hole.

The streamer flickered, and the bottom of the cave returned to darkness, but only a short moment later, a strong light suddenly rose from the bottom of the pit.