Under his command, the soldiers moved quickly and maintained a solid formation, like an indestructible wall of steel. In addition, the monsters rushing out of the cave have different appearances and are terrifying. Some monsters are huge, covered with thick shells and wielding sharp claws. Some of the monsters are thin and erratic like ghosts, with eyes flashing with faint green light. Other monsters have fangs and sharp teeth, and spew green venom from their mouths. They attacked fiercely and made cunning sneak attacks, trying to break through the soldiers' defenses. During the battle, some fortifications such as fences also played an important role. These fences were made of solid wood and iron bars and stood high at the entrances to the caves. When the monsters try to rush through these fences, the soldiers will throw thunder bombs at them from behind the fences, causing heavy damage. At the same time, the fence also slowed down the monsters' attack speed, buying the soldiers more time to prepare.

But with the monsters pouring out in front, the pressure is actually quite good. Because the levels of these monsters are mostly concentrated at level 12 or 13, although it is a certain challenge for Jiang Yu and his team, it is still within an acceptable range. The soldiers were able to cope with it relatively easily thanks to their superb combat skills and tacit cooperation. However, as time went on, the monsters emerging from the cave became stronger and stronger. They seemed to sense the threat from the outside world and began to gradually exert their strength, using greater power to try to break through the soldiers' defenses. Soon, the number of monsters pouring out of the cave gradually increased over time, and the originally spacious battlefield became crowded. Not only that, the levels of monsters also rose rapidly, and soon reached level 14! This doubled the pressure on the soldiers and the defense line began to become shaky. At this time, the defense line finally couldn't hold on. "Report, Cave No. 3 requests support!" A soldier came running in hurriedly, his face pale and his voice trembling slightly. "Report, General Cao Ding is injured!" Another bad news came, making Jiang Yu feel even more depressed. "Report, the turret in Cave No. 9 has been destroyed!" Then, another piece of bad news came, forcing Jiang Yu to make a decision immediately. He knew very well that if no action was taken, the defense line would collapse completely. So he had to send reinforcements immediately. Originally, he was responsible for defending the 8 caves, and he sent 2 people to defend each cave. However, he now had to make adjustments and replenish the troops in each cave to 3. In this way, a total of 24 people defended the eight large caves and were able to barely stabilize the defense line. The first day in the elite area is finally over. After a whole day of intense fighting, everyone felt physically and mentally exhausted. But as night fell, the brief respite did not last long.

Everyone breathed a sigh of relief, but that breath was soon tensed again because of a new crisis. Because, in the middle of the night, the originally relatively calm situation suddenly took a turn for the worse, and the monsters' attacks became even more ferocious! They seemed to know that night was humans' weak period, and they woke up in the darkness one after another, making deafening roars and rushing towards the defense line like a tide. Although the soldiers had killed tens of thousands of monsters during the day, those were just the tip of the iceberg. At night, more monsters continued to emerge from the depths of the cave. They jumped, squirmed, and sprinted, trying every way possible to break through the cage set by humans. Jiang Yu and others knew the severity of the situation and did not dare to relax. They continued to supervise the scene in person and command the soldiers to defend. Every detail was related to the direction of the battle. Because the abilities of some monsters are enhanced at night, and because of their absolute advantage in numbers, the 3 soldiers originally deployed in each cave seem to be stretched to the limit. Although every soldier tried his best, the defense line was still shaky. Faced with such a situation, Jiang Yu had to make a difficult decision to increase the number of soldiers guarding each cave again from 3 to 4. In this way, the total strength of the eight caves reached 8! This already reached more than half of the 600,000 troops he led. Such troop deployment meant that Jiang Yu's available troops were greatly reduced. You know, the daily development of the territory also requires military forces, such as sending troops to conduct reconnaissance in the surrounding area, sending troops to garrison those support points, sending troops to defend facilities such as quarries, and so on. All of these require manpower. If he needs to lead troops to war, the territory also needs enough soldiers to defend it. The reduction of available troops by more than half means that his future daily development will be greatly affected! Jiang Yu finally understood why some people in the past could not hold on for half a year. If half of the troops at hand could not be mobilized for a long time, it would be really hurtful! You should know that the lord levels in the elite zone are basically above level 15. Mo Yu is as high as level 17, with a population of over million and tens of millions of soldiers. He only had a few hundred thousand soldiers... he could not compare with them at all, not to mention that half of these soldiers had to be divided up to garrison the Ten Thousand Demons Cave. But there is no other way. Now they can only find a way to gain a foothold in this crisis-ridden place. Moreover, developing here can not only temporarily avoid the attention of the outside world, but also reduce one's own attention. You can also use this time to slowly accumulate strength and prepare for future battles. Therefore, he made up his mind to gain a foothold in this area no matter what. Then develop secretly here... In the next few days, Jiang Yu continued to adjust the deployment of troops, gradually increasing the number of soldiers guarding each cave. In the end, the number of troops in each cave reached 5, and the total number of troops in the 8 caves reached 40! This is a huge number and also the largest force that Jiang Yu can mobilize. The reason why he made such a decision was because he found that only this number of troops could completely stabilize the impact of the large number of monsters in the Ten Thousand Beasts Cave. Every time night falls, those monsters come like a tide, trying to break through the human defenses. Jiang Yu's soldiers, however, relied on their firm will and excellent fighting skills to repel them time and time again. This process is indeed extremely difficult.

You know, this was only achieved when the generals under Jiang Yu were strong enough. His generals are not only highly skilled in martial arts, but also have strong command capabilities and are able to make correct decisions at critical moments. If the quality of the generals was average, Jiang Yu estimated that he would have to send more troops to defend in order to stabilize the defense line. In that case, even 60 troops would not be enough! If 60 people cannot defend against those monsters, his plan will be completely ruined. At that time, not only will they be unable to gain a foothold in this area, but they will also be forced to compete with lords from other elite areas for territory. The risks involved were so huge that Jiang Yu couldn't even imagine it. (End of this chapter)