Of course, Liu Qingshan knew very well in his heart that since his air base was a secret base, it was natural that it must be truly confidential. At the same time, it is more important to ensure its safety. Otherwise, even if there are too many Fire Eagle fighters stationed in that air base, what role can that play?

Back then, a certain island nation attacked Pearl Harbor of a certain Citigroup, and as a result, it almost caused the destruction of a fleet that is unparalleled in the world! There is another example. It's still that hateful island nation, back then, it once besieged the superior fleet of the Whipdragon Empire in a military port, and then it was a painful bombardment!

As a result, the large fleet called the "Beiyang Naval Division" was also directly wiped out as usual. Therefore, those two combat examples are enough to show the importance of security work, and at the same time, they also show that any combat unit must have a certain degree of mobility and flexibility. Otherwise, the consequences would be unimaginable.

Therefore, under this situation, Liu Qingshan deliberately dispatched his two mammoth tanks, which had been upgraded to a three-star elite-level level, to guard the entrance of that secret air base.

Generally speaking, that air base is located on a plateau, and that plateau, the connection with the outside world, is only a passage. So, it would be nice to send those two three-star elite-level mammoth tanks to guard there. In this way, it is simply impossible for the enemy's ground combat forces to break through its defenses. Their strong overall combat performance, as well as their ability to quickly restore their health, make this kind of mammoth tank, in fact, have the ability to take on one side at all.

Sure enough, not long after, Liu Qingshan had already detected that in the enemy's base, five Viper fighters were flying straight in the direction of his base camp. Obviously, the enemy army was trying to harass Liu Qingshan's rear, let Liu Qingshan's backyard catch fire, and then relieve their pressure on the front line. Yes, it's an obvious move!

Due to the fact that in terms of ground combat forces, it can be said that the enemy forces are now in a completely inferior position. In particular, they are basically gone, ground combat units that can be used for mobile operations. Under such circumstances, it is natural that the other side can only use its air strike power as its only mobile combat force to accomplish certain strategic and tactical intentions.

Five Viper fighters, whistling, flew straight from mid-air, heading straight towards Liu Qingshan's base camp. Its speed is so fast, even Liu Qingshan is dumbfounded! Yes, now it seems that the other side has made some improvements in the flight speed of this Viper fighter. Otherwise, it would never have such a speed, at least about 30% higher than before!

"Damn, no matter how fast it is, it's not as fast as Lao Tzu's missile! Even if you fucking increase the flight speed of that Viper fighter by about 30%, but Lao Tzu still kills you! After all, now, Lao Tzu is a rich man, Lao Tzu is rich, and in terms of economy, he has far more accumulation than you! Therefore, Lao Tzu can take advantage of the advantage in terms of numbers and directly forcibly suppress you! Liu Qingshan couldn't help but think secretly.

Moreover, even if it is the opponent's Viper fighter, the flight speed has increased a lot, but, no matter what, in terms of overall combat performance, compared to Liu Qingshan's Fire Eagle fighter, it is still a big difference!

So, with Liu Qingshan's order, the twelve Fire Eagle fighters took off straight at almost the same time! Take off from the secret air base located near the enemy's evil city, go straight into the sky, divide into left, center, and right three ways, and attack each other towards the five Viper fighters on the other side!

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And in the former enemy command on the side of the Unholy Alliance, General Pierce, the former enemy commander of the Unholy Alliance, was staring nervously at the big screen in front of him at this time. Above, the five Viper fighters monitoring him in real time were flying towards the target.

Suddenly, he saw that more than a dozen enemy planes had appeared! Strange, when did the other side come up with such a large number of fighters? Before that, the other side had only been developing ground combat forces, and in terms of air force combat forces, it had always been their weak link! But, but, what's the matter, all of a sudden, so many fighters ran out at once?

After seeing this, General Pearson couldn't help but be shocked! Yes, although before that, it should be said that he had a certain advantage over the other side only in terms of the combat power of the Air Force. However, then again, the evil city on their side is a besieged city after all, and all kinds of resources have been exhausted, which has seriously affected their current combat power production.

Therefore, in this case, it is certain that you will never fight hard with the other party! There should be no unnecessary consumption of combat forces! After all, they can't compare with the other party, but they occupy a large number of mineral resources, so they can produce a large number of combat units. And I can't do it, these very limited combat forces in my hands can only be calculated and used carefully, otherwise, this evil city will be captured as soon as possible!

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So, after thinking of this, General Pierce gave an order to quickly order his five Viper fighters to quickly turn the nose of the plane and then return to the plane. At this time, Liu Qingshan's twelve sorties of Fire Eagle fighters had already rushed up, and the troops were divided into three routes, and the momentum was violent. However, at this time, Liu Qingshan saw that the enemy's five Viper fighters had returned, and knew that if he pursued again, it would still be very unfavorable for him.

Because, in any case, there are a considerable number of anti-aircraft weapons deployed in the enemy's bases. Moreover, those air defense weapons all have the level of defensive operations on the march, not to mention their own dozen fighters, even dozens of fighters will be shot down very quickly once they penetrate into the sky above that evil city!

Therefore, in this case, naturally, Liu Qingshan's mind is very clear. Since this is the case, then, naturally, he will definitely not continue to pursue.

However, Liu Qingshan knew that in this way, his air defense system had basically been formed. And the enemy's only remaining air superiority was declared bankrupt with the construction of his own airfields. Next, he can officially launch a full-scale attack on the enemy's position.

So, immediately after, with Liu Qingshan's order, according to the battle plan he had drawn up, the three-star mammoth tanks in the combat unit he had arranged in the direction of the south gate of the evil city, a total of five, were assembled, and then, in a mighty and vigorous manner, rushed straight towards the south gate of the evil city!

"Boom Boom Boom ~~~~~~" is marching and bombarding at the same time! One by one, the cannonballs whistled out, broke through the air, and struck hard at the south gate of the evil city!

The so-called "South Gate", although it was a steel structure, could not withstand the bombardment of the heavy artillery for long, and soon after, it was already bombed into ruins.

Then the five mammoth tanks went straight to the south gate and followed the ruined road into the evil city. However, it was only at this time that Liu Qingshan discovered that it turned out that the highway did not lead in a straight line to the target, the evil center located at the core of that evil city, but turned several corners!

"Can't get there in a straight line? Wow, damn it, the layout of this evil city is really fucking evil! In this way, it is natural that it will make its offensive more difficult! Liu Qingshan couldn't help but scold secretly. Because he knew very well in his heart that in this way, his attack troops would take a lot more roads. And in this evil city, it is often the case that every step you take will bear more blows in vain, and at the same time, naturally, you will suffer more losses!

However, there is no way around it! Now that you're here, let's go forward! What's more, the mission of their southern attack troops is not a real attack, but a feint, to put it bluntly, they want to get through their attack, involve more enemy combat forces, and let the enemy army have more combat forces to enter here! In this way, they can create better conditions for the offensive of their western attack troops.

Just when Liu Qingshan's five three-star elite-level mammoth tanks were advancing with all their might, along the street that turned east and west, and advanced at full speed, naturally, some blocking forces on the enemy's side would not be indifferent! Squad after team of Scorpio tanks, rushing in, are often followed by some infantry of all kinds! The infantrymen kept shouting loudly, and the sound sounded like hysteria, full of infinite madness.

At the same time, from the inside of the wall, several powerful laser beams suddenly shot out, roaring, breaking through the air, and hitting one of the mammoth tanks fiercely! After seeing this, Liu Qingshan couldn't help frowning tightly! Wow, damn it, there, there, there's a tablet laser turret hidden! Yes, Liu Qingshan knew very well in his heart how powerful that kind of tablet-type laser turret was! Fortunately, these mammoth tanks, which are all three-star elite level, not only have unique defense capabilities, but also, more importantly, they have quite good health self-recovery capabilities!

Otherwise, I'm afraid they would have been destroyed long ago! Moreover, Liu Qingshan knew that he was fighting far away from his base and had no logistics support. Therefore, in such a situation, the most important strategy is to solve it quickly! However, now, he is facing two enemy forces at the same time, and he is facing the attack of the enemy army from two sides at the same time! Therefore, Liu Qingshan decided to divide the troops!

Yes, it's a division of troops! When it is time to divide the troops, it is natural to divide the troops. Only in this way can you face the enemy's attack from both sides at the same time. So, after thinking of this, Liu Qingshan divided two of his own mammoth tanks to attack the tablet-type laser turret, and at the same time, ordered his other three three-star elite-level mammoth tanks to deal with the mobile forces of the enemy army that was rushing towards him!

"Tom Tom Tom ~~~" The thick barrel of the mammoth tank to deal with the mobile forces of the enemy army that is rushing towards him!

"Tom Tom Tom ~~~" The thick barrel of the mammoth tank keeps expanding and contracting, and every time it expands and contracts, a huge heavy shell will be fired!

In this case, Liu Qingshan knew very well in his heart that this attack carried out by his southern road army, in fact, the main role was to launch a real attack for his drama road army and cover it. For the one that was stationed outside the west gate of the evil city was the closest to the center of evil, so to speak. Therefore, according to the battle plan deployed by Liu Qingshan, as long as his southern route army can attract more enemy combat forces, then he will definitely be able to provide very good cover for his western route army to attack the evil center.

Therefore, from this point of view, the responsibility borne by his own army on the southern route is very heavy. The burden on their shoulders is very heavy. As a result, it is certain that the southern attack force, consisting of five three-star elite-level mammoth tanks, will face very heavy pressure. Now they are under enemy fire from two sides.

In the face of the fierce laser beam attack of the laser turret of the enemy's experience, two three-star elite-level mammoth tanks, without showing weakness, continued to shoot out one shell after another, whistling through the air, and hitting the wall fiercely. Yes, you know, the laser turret, a monument to the enemy, is surrounded by a wall on its perimeter.

Therefore, in this case, those shells first hit that wall, and with a deafening explosion after a sudden sound, one after another heavy shells bombarded that wall, it looked like it was full of gunsmoke, and in that piece of gunsmoke, I saw that the wall had collapsed, and it looked like it had almost become a ruin. In this way, the monument laser turret inside was completely exposed to the fire of Liu Qingshan's two three-star elite-level mammoth tanks.

Although, at this time, two sharp laser beams roared over, hitting the mammoth tank again. However, at this time, the extremely fierce defensive capability of the mammoth tank was once again concentrated on the show.

Two fierce purple-red laser beams, whistling, shot like lightning, and after being attacked, the mammoth tank's health was knocked out by more than 30 parts of a half. And, since the last attack, the listing has not healed. Once, and now under such a fierce attack again, the 12 mammoth tanks had less than 40% of their health left. In this situation, the mammoth tanks once again launched a fierce attack on the laser turret of the monument, which had eaten the walls of the wall. Several shells, cutting through arcs, fell from the sky, emitting one scream after another, hitting the target with precision.

"Coax, coax, coax, ......" With bursts of explosions, Liu Qingshan finally saw that the laser turret of the enemy's monument, after being knocked out of the last bit of health, roared, and with a deafening explosion, it suddenly sounded, and then, it turned into a ruin, and disappeared into abdominal pain. However, at this time, in the other direction, the enemy's mobile attack force was rushing towards it frantically. In front, there were seven or eight Scorpio tanks, mighty and menacing, frantically charging towards the place, while constantly firing one shell after another. Therefore, Liu Qingshan immediately brightened up the two mammoth tanks that had just destroyed the laser turret of the enemy monument, turned the muzzle, and worked together with the other three mammoth tanks to deal with the group of enemy Scorpio tanks that were rushing over.

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As a result, between the two sides, a large-scale tank battle is in full swing. Although, on the side of the unholy alliance, the tank combat forces involved in the attack, in terms of numbers, have a slight advantage. However, despite this, in terms of overall combat performance, there is still a huge gap between those few enemy Scorpion tanks and Liu Qingshan's three Mammoth tanks. At the very least, those Mammoth tanks have been upgraded to the three-star elite level. For this alone, the other side's Scorpion tanks cannot be compared to them.