Now, the peacekeeping bomber, which was already the enemy, came to Liu Qingshan's base for the second time. Liu Qingshan knew that when he came for the first time, it was to reconnoiter the situation. And this second visit, naturally, will definitely not be as simple as "reconnaissance".

Liu Qingshan knew that the enemy's kind of peacekeeping bomber had quite good bombing capabilities. Moreover, the flight speed is fast and the maneuverability is strong, and it is indeed a pretty good air-to-ground combat force.

However, Liu Qingshan is not unprepared for air defense. At the beginning of the operation, Liu Qingshan had already built an anti-aircraft gun in his base, and at the same time, after the barracks were just built, Liu Qingshan had already set up a training plan for five air defense soldiers. Of course, Liu Qingshan also knew that just relying on such a small amount of air defense combat power would be far from enough. However, fortunately, now, the one in Liu Qingshan's base, the most important military facility for himself: the war factory, has also been built. In this way, it will be able to produce the kind of "bullfrog vehicle" with specialized air defense combat capabilities. And when he thought of the scene when the bullfrog vehicle was air defense, the scene when the "tom tom tom" was fired violently, Liu Qingshan couldn't help but be full of expectations and yearning.

Finally, not long after, on Liu Qingshan's base, five bullfrog vehicles were finally produced. Looking at the clumsy body, there were two anti-aircraft guns erected, the body looked very long, as if a lot of shells were stored in it.

"Haha, haha, you guys, Lao Tzu's base air defense mission will be handed over to you! You've got to keep it for me, you've got to keep it for me! Liu Qingshan said with a smile. Then, Liu Qingshan set up the production task of five sickle mechas, and after thinking for a while, Liu Qingshan added the production tasks of five hammer tanks. Yes, you can't just focus on air defense, and you don't have a plan for ground defense!

Then a gust of wind blew, the trees swayed endlessly, and the sound of the wind was mixed with the roar of Liu Qingshan's base machine, as well as the sound of the waves at the edge of the base. However, Liu Qingshan knew that behind this seemingly peaceful and peaceful situation, there was an extremely strict form of war.

"It seems that the biggest characteristic of this opponent is that he is good at conducting air raids. Wow, relying on him, although this move will not bring a blow to himself, but it can indeed affect the speed of his base construction and combat power production. But fortunately, he has already produced some air defense combat power, so at least he will not be too constrained by the air strike force of the army. Liu Qingshan secretly thought in his heart.

And just when Liu Qingshan was still immersed in this wind and rain, with the sound that made his heart palpitate in mid-air, Liu Qingshan knew that another aerial attack of the enemy army had finally begun again. That is, Liu Sen is still prepared, otherwise, it would not be a joke to say that he was scared to pee.

"Bullfrog vehicles, boom! grandma, you have to knock them down for me! Damn, that's just too much of a bully!" At this time, Liu Qingshan could be said to have hated the peacekeeping bombers that were set up there to release the army. So under Liu Qingshan's order, with Liu Qingshan's shouting, the five bullfrog carrier anti-aircraft guns fired at the same time. I saw two firing cannon barrels, expanding and contracting, and the frequency was staggering. I could only hear the sound of tom tom after tom, and one by one anti-aircraft shells shot out of the wind and struck the enemy bombers in mid-air through the dense branches and leaves. As a result, one of the Junghe bombers was immediately beaten into billowing black smoke, and a long tail smoke dragged up from the rear of the plane, and swooped down at an inclination angle of more than ten degrees to the ground, and at the same time let out a sigh that seemed to be very reluctant. After that, the peacekeeping bomber crashed headlong into the rock above the ground, and then the dark golden fire suddenly flashed, and a roar came, and as a result, immediately, the enemy peacekeeping bomber turned into the wreckage and fragments of Xianmu, soared into the sky, and scattered......

What's more, under the frantic attack of Liu Qingshan's dense and fierce ground artillery fire, there was an enemy peacekeeping fighter plane, which exploded directly in the air, and the situation was simply a muffled thunder in the clear sky, shaking the heavens and the earth, shaking the earth and shaking the mountains, the fire flashed, and countless wrecks and debris flew in all directions, shooting out with the fireball in the air, as if a nuclear bomb had been detonated in the air.

Of course, Liu Qingshan's ground defense force was not without being hit by Ren, after all, the lethality of that kind of peacekeeping bomber is still very powerful.

In order to have sufficient air defense combat power to compete with the enemy's air combat power, Liu Qingshan had no choice but to desperately produce air defense combat power. And now, the kind of air defense infantry with average air defense capabilities is too lazy to produce anymore, but it is that kind of bullfrog vehicle, its very excellent air defense ability, Liu Qingshan can't help but be impressed. Therefore, intentionally or unintentionally, Liu Qingshan also produced more.

In this way, in fact, the two sides have begun to wage a war of attrition. On the ground, Liu Qingshan is constantly strengthening his air defense capabilities, in addition to the production of bullfrog vehicles, in addition, the construction of anti-aircraft guns at the base. Now, Liu Qingshan has built two, and he plans to build three more, well, at least three more!

In addition, regarding the production of ground combat vehicles, first of all, the hammer tank is certain, that guy, the most important feature is that while absorbing the energy of the target tank, itself and health are also replenished in this process, so as to avoid the bad luck of being defeated in the end due to the depletion of health. In addition, once a target tank is successfully absorbed, then it will also get the attack ability of that target vehicle, so that if a hammer tank successfully absorbs the combat power of several different enemy vehicles, then it will also have all the attack capabilities of these vehicles that have been drained of health by it, so that it will become a kind of "all-rounder" combat power with a variety of attack capabilities and attack weapons, so that it will have a variety of Multinational Force-style fancy arsenal. This is naturally even more rare. Therefore, Liu Qingshan has always attached great importance to this kind of hammer tank.

In addition, it is important to build a repair center. For the same kind of maintenance center, Liu Qingshan feels that it is actually indispensable. That's really what it is. Because once your combat power is sniped, once its health is reduced, then, if it is not maintained in time, then it will be destroyed in vain. And once you have a repair center, then, even if you have a lot of combat power for your own tank, you have lost a lot of health, but it doesn't matter. As long as that vehicle is within the maintenance range of that repair center, it will be replenished by the health power that radiates from that repair center, so that the attacked vehicle can recover its health in the shortest possible time......

Fortunately, at present, the production and construction funds on the Liu Qingshan base are relatively abundant, so in this way, no matter what kind of military facilities are being built or what kind of combat power is being produced, there is no problem.

"Boom~~~~ Boom ~~~~~" With the strange rumbling sound of that sound, Liu Qingshan had just set the construction address of the maintenance center, and a dazzling fire was shining everywhere, obviously, that was the scene when the construction started. The welding fire flickered, the complex steel frame continued to open and close, and the huge tower crane moved up and down, and the smoke rose into the sky one after another. Ten seconds later, finally, a very tall and majestic looking building was born.

Then, out of the billowing smoke, four flywheels flew out. The four flywheels were spinning and spinning around the repair center. A tall and majestic building was finally born.

Then, out of the billowing smoke, four flywheels flew out. The four flywheels were spinning and spinning around the repair center. Liu Qingshan knew that the flywheel was actually a special maintenance tool. Once the combat power of their own chariots is damaged, then they will rush over as soon as possible, and in the air, they will continuously input the health energy into the bodies of those damaged targets, so as to achieve the goal of making their lives worth restoring......

In this way, Liu Qingshan's base construction and combat power production continued. At the same time, he was always ready for the kind of air strikes of the enemy. After all, at the current stage, the enemy's attack method is to use that kind of air strike. Therefore, as long as you do a good job of air air defense, then there should be no more problems.

"Huhu~~~~ Huhu~~~~~" is another few enemy peacekeeping bombers roaring in, their huge fuselage, has simply become its signature symbol. Roaring, roaring. Then, one after another, air-to-ground missiles shot out from the peacekeeping bombers one after another, piercing through the clouds and fog.