For the next week, the entire base was learning new combat theories.

Now that the theoretical knowledge is almost complete, it is time to put it into practice, because practice is the only criterion for testing truth.

Although their performance in the first cooperation was not very good, they gradually mastered the tricks through continuous training, and the joint land and air operations became more and more perfect.

A month later, No. 1 was officially transferred. Xiang Jingtian received an exercise notice on this day. This time, their superiors asked them to play the role of the Blue Army because their strength could be regarded as the strongest in the entire army.

The changes to their base have been seen and remembered by the superiors, and this time they will put their abilities to the test.

Xiang Jingtian quickly sounded the battle alarm and notified everyone to gather in the playground.

Xiang Jingtian said to them, "Comrades, this is an exercise mission. We are acting as the Blue Army. You all know what the Blue Army means. That's right, it's the grindstone where we sharpen our knives. The Red Army facing us this time is the once-famous Iron Blood Division. I'm sure you've all heard of their reputation. They've never been defeated in so many exercises. Although they have far more men and equipment than us, I have confidence in you. Quality is more important than quantity. This time, we're going to teach the Iron Blood Brigade a lesson. Do you have the confidence?"

Then the thousand people in the audience responded loudly: "Yes, yes, yes."

Xiang Jingtian said, "Well done! I'm sure you're tired from all the training these days. This is a good opportunity for you to test out the effectiveness of this new combat mode. Now I give the order, everyone, set off."

Because the exercise area has a designated location, they are more than 300 kilometers away from the exercise area. The Air Force can fly there directly, but the Army's equipment can only be transported to the exercise area by train.

Of course, Xiang Jingtian only arranged for a small number of people to take the train, and the others took transport planes to the exercise area, but they could not fly to the airport completely, because the exercise had already begun from the moment the mission was issued, and there was no guarantee that the other side would launch a tactical attack on you.

It was really unexpected. They had just walked a short distance when they received a report that the base was destroyed by a tactical strike. Fortunately, they left quickly.

Xiang Jingtian said: "Fortunately, I ran fast, otherwise I would have been so embarrassed."

At this time, Xiang Jingtian was flying a fighter jet. Except for leaving three planes as escort planes, the other fighter jets were following him as pioneers to explore the way ahead and kill all the enemies.

Xiang Jingtian has now upgraded his detection radar to 100 kilometers. Now it doesn't matter whether he uses radar or not when flying the plane. His Zero can directly take over the plane. This kind of artificial intelligence is an alien technology that is hundreds of years ahead of the Earth's technology. Operating this fighter is a piece of cake.

However, upgrading the detection radar is very expensive. It costs 100 points per kilometer. Now that 70 kilometers have been added, 7,000 points have been lost. Now he has only about 80,000 points left after spending most of them. The construction is spending money so quickly. More than 110,000 points are only reduced to 80,000. This is to build the basic facilities of the Air Force. No wonder our country's annual military expenditure was so high before. Now he realizes how difficult it is.

Xiang Jingtian and his men were flying fighter jets at supersonic speed, and soon they were about to reach the exercise area. At this time, a red dot appeared on Xiang Jingtian's radar. He knew without thinking that it was the Red Army's fighter jets cruising in the sky. If they all landed on the ground, they would be wiped out.

But only a fool would do such a stupid thing. Anyone with a brain would not put all their eggs in one basket.

Xiang Jingtian said on the radio: "Everyone, pay attention, change combat formation at low altitude and follow me."

After receiving the information, the other people instantly changed their low-altitude combat formation. However, the opposite side still had not detected any trace of Xiang Jingtian and the others, and they were still flying slowly in the sky.

Soon, the flight formation, led by Xiang Jingtian, arrived near the opposite fighter jets. At this time, red cursors appeared on the detection radars of other aircraft.

Xiang Jingtian said: "Well, you see, there are five planes, one for each of you. I'll take the middle one, and you can divide the rest."

The others had already been unable to contain themselves. The daily training was too boring, so this was a good opportunity to try out the new skills they had learned.

They completed the distribution quickly, and when they reached a certain distance, they pulled up from the bottom and flew directly to the bottom of the opposite Red Army fighter plane.

At this time, the Red Army pilots on the opposite side also heard the roar of the engine, but there was no display on the radar. Their sixth sense told them that it was a Blue Army fighter, so they subconsciously prepared to roll to avoid it, but it was too late. All five Red Army fighters on the opposite side had been marked as having been destroyed.

At this moment, the Red Army pilots were confused. This was the first time they were shot down in the sky, and in this way. They really couldn't swallow this, but at this time they could only return and land.

At this time, the Red Army also received the news that the fighter jets were shot down. They did not expect to lose five fighter jets at the beginning. This also made them pay more attention to the Blue Army this time.

At this time, Xiang Jingtian said on the radio: "Everyone, patrol in all directions. We must find their air base and destroy their aircraft before our team arrives. If you find it first, send the location directly to the terminal."

Everyone: "Got it."

Now their fighter jets consume much less fuel than before, and their stealth performance has been greatly improved, making it very easy to avoid radar detection. However, the noise is still very loud, and ground personnel can see the aircraft with the naked eye.

Since Xiang Jingtian's detection radar had a detection range of one hundred kilometers, he found the location of the Red Army's airport not long after flying. He quickly asked Zero to send the location to others.