The following day, Eagle Valley was bustling with activity and tension.

Everyone in Kunzhai, including some elderly people and women, was mobilized to repair fortifications or busily transport supplies.

Lin Dong optimized the existing defenses in Eagle Valley.

In particular, the defensive loopholes he pointed out were all patched up.

First, there are three sentry posts outside the valley. They are perfectly adequate for preventing intrusions by small groups or serving as outposts.

But now they are facing thousands of Kachin Independence Army soldiers, and these outposts scattered around will only become food for others.

Once the main force arrives, the outpost will be breached in an instant...

Therefore, Lin Dong's strategy was to abandon all sentry posts and only set up mobile sentry posts in important locations around the clock to provide timely warnings of Kachin Army incursions.

Lin Dong didn't make any major changes to the three-dimensional fortress defense at the valley entrance, except that he added a Barrett sniper team to the highest firing point.

With the Barrett sniper rifle's effective range exceeding 2000 meters, a sniper team of 10 Barretts would be more than enough to give any attacking enemy a hard time.

Since last night, Eagle Valley has been on high alert, and almost everyone in the valley has been mobilized.

Just after 8 a.m., Lin Dong, along with Feng Zi, led the Kun Sheng and Kun Feng brothers to climb Eagle Tail Cliff.

Standing atop a peak over a thousand meters high, overlooking the swirling clouds and mist beyond the valley, the Kun brothers once again felt a renewed sense of unease about the Independent Army's Black Hawk attack helicopters.

"Boss Lin, you've always said that our biggest weakness in defense isn't outside the valley, nor at the valley entrance, but in the airspace surrounding the valley?"

Kun Sheng, who had been speaking very little these past two days, was under a lot of pressure, and he couldn't help but express his biggest worry.

"Yes, that's why I'm bringing you back to Eagle's Tail today to find the best way to defend it."

Lin Dong leisurely lit a cigarette and squinted as he surveyed the inside and outside of the valley.

With his abnormal combination of remote viewing, microscopic vision, and X-ray vision, nothing in Eagle Valley, including the rock structure of the mountain peaks, could escape his all-seeing eye.

"Boss Lin, what's the plan? Please explain!"

Kunfeng humbly asked for advice, his initial disdain for Lin Dong had turned into complete admiration.

"Does our armory in the valley have anti-aircraft machine guns?"

Lin Dong asked casually.

"Yes, there are 24 NSV cliff-mounted anti-aircraft machine guns in the North Cave Armory. They were part of a batch of weapons I imported from North Xiong Kingdom three years ago, and I haven't been able to sell them yet."

Kun Sheng eagerly answered, "No one knows the stuff inside those two large cave armories better than me."

"NSV cliff-mounted anti-aircraft machine gun, using 12.7×108mm anti-aircraft machine gun ammunition, 50 rounds per box ammunition belt, rate of fire: 750 rounds/minute."

"Each NSV cliff-mounted anti-aircraft machine gun is equipped with a 6U6 tripod, which can be operated and fired by a single person. The 6U6 has an elevation angle of -10° to +85° and a maximum azimuth field of fire of 360°."

Lin Dong listened attentively, nodding frequently, and smiled:

"Boss Kun, that's impressive. You even have such a niche weapon in stock?"

Kun Sheng chuckled sheepishly.

"These anti-aircraft machine guns were the leftover stock from that Northern Bear arms dealer back in the day, sold off almost for free, hehe..."

Lin Dong laughed even harder and joked:

"This just shows that you, Boss Kun, are incredibly lucky. You've gotten a great deal on those leftover stock from three years ago, haha..."

"By the way, do you have a large stockpile of ammunition for the anti-aircraft machine gun?"

Kun Sheng thought for a moment and replied:

"That should be enough. Back then, the owner cleared out all his ammunition stock for me."

Lin Dong breathed a sigh of relief and said:

"That's good."

"According to my original plan, the air defense was mainly placed on the inside of the steep cliff. Now that we have the NSV cliff anti-aircraft machine gun, it is enough to create two lines of defense."

"Kunfeng, select 100 men from the defense force to form 24 anti-aircraft machine gun teams, each team consisting of 5 men: two gunners and three loaders."

Kunfeng's spirits lifted, and he immediately stood at attention to receive the order: "Yes, sir!"

Lin Dong continued to give instructions:

"These 100 anti-aircraft machine gunners only have two days to train. Time is of the essence, and it needs to be implemented as soon as possible."

"In addition, anti-aircraft machine gun positions should be located on high hilltops with wide firing arcs to keep enemy aircraft at a distance, and camouflage and concealment should be taken into account."

"24 anti-aircraft machine guns, arranged in a triangular formation of 3, with each machine gun 500 meters apart, to provide mutual support and cover."

Kunfeng became more and more excited as he listened. This Boss Lin really had a lot of knowledge hidden in his head. He even knew these things.

But it does sound plausible.

No wonder, how could Kunfeng possibly know that Lin Dong's enhanced brain nerves and thinking abilities are already infinitely close to the level of a max-level human?

No matter what the situation, he can always grasp the key points in the shortest time, and then apply what he has learned to other situations, even mastering the skills without a teacher.

"The Eagle Valley is 5 kilometers long on both the north and south sides. There are 3 triangular machine gun arrays on each side, and 9 anti-aircraft machine guns on each side. That should be enough."

"At the entrance and the end of the valley, a triangular machine gun array was set up, with three anti-aircraft machine guns in each array."

Lin Dong's eyes gleamed; a perfect air defense diagram clearly appeared in his mind:

"The second line of defense consists of 40 PGR rocket launcher attack teams positioned on the inner reverse slopes surrounding the valley."

My dear reader, there's more to this chapter! Please click the next page to continue reading—even more exciting content awaits!