In the midst of a forest surrounded a circular lake, several black figures flashed by, and as the gunshots rang out, the broken trees flew and exploded in all directions!

Dada......

The dense gunfire characteristic of automatic rifles reverberates with a lingering echo.

"Chicken, chicken, the target has been surrounded!"

"Nine cakes and nine cakes, the visual camera model is Asuro."

As soon as the words fell, a blue and white striped sphere about 1 meter in diameter rolled out of the woods and came to this open space full of fire marks, and then four soldiers in yellow and black military uniforms rushed out from all sides.

The black and yellow-edged military uniforms do not have any camouflage elements, the yellow leggings and the black belt on the coat make the whole person extremely tight, and the black painted 5.8 mm caliber stockless automatic rifle is equipped with a grenade launcher, but the most interesting thing is the black round shield with a diameter of about 20 cm on the left arm of each of them.

What is the point of equipping a shield in the age of hot weapons?

"Guided grenade ready!"

At the captain's command, the four of them loaded the grenade into the grenade launcher almost synchronously.

"Wait for its head to stick out!"

Click~

The blue-and-white sphere deforms as scheduled, with the sides of the sphere lifted up to form limbs, and then the head resembling an inverted triangular pyramid rotates from the surface of the sphere, eventually becoming a hemispherical short, stocky humanoid robot. The robot's body and limbs show a concise arc, and the whole body does not have any seemingly useless angular protrusions, making it appear strong and powerful.

It's called "Asuro", one of the most common models of alien drones.

"Launch!"

At the sound of an order, four successive grenade fires sounded with a "bang"!

Dragging a winding white tail of smoke, four grenades swept towards the head of the robot in the middle from four directions. But at that moment, the hemispherical robot suddenly fell, its belly spun upwards, and the 2.6 mm caliber particle cannon on its limbs swept towards the sky like a blue laser sword!

Rumble~

All four grenades exploded in the air in an instant, and the four armor-piercing guns were splashed with steel needles, exploding like the ground, and the dirt was splashing, but not a single fragment appeared!

Their armor-piercing grenades can only penetrate the weakest part of the alien body's armor within 10 meters, meaning that if the grenade explodes and produces any fragments other than armor-piercing steel needles, the high-velocity fragments could injure nearby soldiers.

This is the technological gap, even after more than two hundred years, human beings are still unable to create weapons that can penetrate alien armor at long distances, and even 62 times the caliber cannon with depleted uranium armor-piercing shells cannot penetrate alien armor more than 1 cm thick.

This is a technological gap that borders on hopelessness.

"Get down!" With a shout, the four of them immediately fell to the ground, and then Asuro fired a pulse of pale blue particles that swept through everyone's scalps.

"Oh, it's dangerous."

"Idiot! I didn't tell you to lie down to hide from the enemy! ”

"Huh?" The soldier lay on the ground with his head raised in confusion.

Shout!

A pale blue pulse particle whizzed past his head, and the hair on the top of his head instantly burst into flames!

Hundreds of meters away, on top of the sentry tower, a large man was lying on the ground, operating a heavy sniper rifle 2 meters long and weighing 20 kilograms. The faint brilliance of particles lingering on the body of the gun indicates that after the miniaturization of the device, the problem of particle leakage during the storage of the gun has not been solved.

The muscular man immediately picked up the huge body of the spear and shifted his position.

The 11mm particle cannon, which directly disassembles the particle storage device and the gun body from the destroyed alien robot, and then integrates the shape, is currently the strongest individual firearm owned by mankind, and the official name of the military is "Miga particle sniper rifle", commonly known as "Miga plus rifle".

The so-called "Miga particle" is a special high-speed particle used by alien robots, which is the product of the fusion of positive and negative Minovsky particles, because it has a high degree of kinetic energy, does not need a huge accelerator, and only needs to condense the direction of motion to become a beam weapon, so it has the characteristics of simple and lightweight, small size, and minimal recoil.

Despite this, for a long time, the particle cannon equipment could only be fixed on armored vehicles due to its large size, which is the so-called "Miga gun", and only recently has it been gradually miniaturized and lightweighted into the current "Miga rifle".

However, even as a product of "miniaturization", the particle rifle still weighs more than 20 kilograms. If the shooter does not shift after a single shot, the shooter will be locked by the alien body in the next second and will be killed to the slag.

Rumble!

The pulse particles hit Asuro's shoulder, leaving only a faint layer of melting on the shoulder armor.

Even the aliens' own particle weapons will not be able to penetrate the armor of these alien drones!

But!

Just because human weapons can't penetrate alien armor at long distances doesn't mean there's no other way to do so!

"Death, death, death!" The young soldier covered his bald head in a cold sweat and lay on the ground tightly, but he still felt a black figure leap over him!

It was a petite figure who was obviously still a child, the red edge strip on the black military uniform was particularly conspicuous, the graceful curved scabbard around the waist reflected the dark luster, and the slightly unsheathed blade flashed a touch of blood red.

But compared to the girl's appearance, the weird blood-colored long knife is not so eye-catching.

The girl's short black hair is wrapped in cute cat-like soundproof headphones, her cheeks are a little baby fat, and her body is small and exquisite, as a primary school student or junior high school student, she is a very cute type, but the red and black military uniform makes her look quite handsome.

It's not just cold weapons, even such girls have appeared on the battlefield!

Zizizizi!

The moment the blade was unsheathed, a violent and sharp sound suddenly rang out!

Type 56 Molecular Vibrating Knife, the most commonly equipped individual alien armored weapon at present, uses Mega particles to impact alloy atoms to cause them to split and reorganize into special molecules in an instant, and produce violent vibrations, and produce terrifying cutting ability, but the blade will not be able to sink and shatter by violent vibration after more than 56.5 seconds of cumulative use, so it is also called "56 and a half". In addition, because the vibrations produce a high-pitched noise, the user must wear a special sound-isolating headphone, which is bulky and ugly.

Then, with the swing of the girl's one-handed hand, the red blade pierced the air and slashed down!

This attack speed is far from reacting to a machine, but it's nothing for this alien assault model called Asuro. The bulging body suddenly knelt on one knee, and while dodging the girl's slash, the 11mm particle cannon in the center of the abdomen quickly charged up and fired at the girl in front of him.

The girl immediately turned sideways and blocked the pulse particles with the round shield of her left arm, and because it was an ultra-close impact, just one defense, the shield with a special coating appeared to melt in a large area, and it automatically fell off from the arm.

At the same time that the round shield fell off from her arm, the girl's right foot fell to the ground, and with the inertia of her body turning, the strength of her waist was accumulated, and the arm that wielded the knife was thrown out like a whip.

Woo!

Asuro's head flew into the air, and the dark blue particles inside the airframe erupted like fireworks!

Boom! The alien body fell to the ground, and the oil sprayed like rain.

Belch......

The other four people present were still lying on the ground, showing a sluggish expression: pills! The head snatcher is here again!

Their eyes were fixed on the girl, who held up the blood-colored long knife, the blade of which was free of the sharp noise of molecular vibrations, and her petite figure seemed so tall and mighty.

The stark contrast is admirable......

If the girl doesn't speak.

"Hahaha, spike! I'm really the ace of aces! Wha! ”

The girl looked up and laughed, her fingers accidentally touching the bar switch on the inside of the handle.

Zizi

The Molecular Vibrating Knife activates again, and then the blade explodes two seconds later!

Bang!

The blade was broken into several pieces under the impact of blue particles, and one of them soared into the sky!

Boom~

The blade of the knife plunged between the white clouds, and a rectangular area around it instantly turned black, one of the countless displays that simulated the blue sky and white clouds.

It is a huge cave with a volume of more than 3 cubic kilometers, the roof of the cave is covered with screens simulating blue sky and white clouds, the four walls are rectangular houses of various sizes, the roofs of these houses are covered with green vegetation to help oxygen circulation, and the bottom of the cave is a rice field with a straight waterway running through it, and there is a forest with a radius of one kilometer in the center of the rice field, and there is a circular mirror-like lake in the center of the forest.

Yandang Town covers an area of 12 square kilometers, with a volume of about 3 cubic kilometers and a population of about 20,000. There are still more than 100 small underground towns of this size in this era! And there are nearly 70 cities on this scale, and there are even giant underground cities with a population of 400,000!

It is an underground country made up of a large number of huge caverns.

It is said that 300 years ago, aliens descended on Earth, and humans were slaughtered and exterminated like the Native Americans. Alien technology is centuries ahead of humans, but they cannot survive for long in places without natural sunlight, so in a long period of resistance and struggle, humans have built such a huge network of underground cities. However, although the aliens cannot enter the underground for long-term activities, they have released a large number of unmanned sweeping robots, entering human cities through underground tunnels to kill, and the armor of those drones is almost immune to all current human weapons!

Since the armor of the alien unmanned robot is immune to almost all the current human ranged weapons, and the 1 cm thick alien armor can block the impact of artillery armor-piercing shells or small-caliber Mega particle cannons, so humans can only destroy alien armor through close combat, and there is only one weapon with such destructive power: molecular vibrating knife. What's even more desperate is that this kind of weapon that causes different metal atoms to disintegrate and reorganize into a special single molecule in an instant by hitting the alloy atoms through the Mega particles, due to the fact that human science and technology are not up to standard, its cumulative service life is only a few tens of seconds!

The life of a weapon is the life of a soldier!

Fight in close combat with alien steel machines in flesh and blood, wielding cold weapons that could collapse at any moment.

This is the only resistance that humanity can do in the face of overwhelmingly powerful aliens.