In fact, there is another reason why the commander of the military area family made this serious mistake, that is, they did not fully understand the defensive deployment of the defenders.
As the main army of the Bingyu clan launched an offensive, Yu Qingyu once again adopted a proactive defensive tactic.
In fact, Yu Qingyu's tactics are very simple. They use a small amount of troops to defend the fortress, gather other troops, and launch a counterattack in a certain direction. Of course, Yu Qingyu did not blindly launch a counterattack. Each time, he chose a weaker enemy or a vulnerable front. In addition, the counterattacks organized and initiated by Yu Qingyu himself are very limited, focusing on destroying the enemy's vital forces instead of competing with the enemy for the initiative on the battlefield. Simply put, the duration of each counterattack is extremely short, try to avoid entanglement with the enemy's main army, that is, fight and run away. Most of the time, the counterattack will only last a few hours, not more than a day at most. When the enemy reacted and took action, the counterattack had already withdrawn from the battlefield.
Of course, the counterattack location may not be near the fortress.
Don't forget, before the enemy came over, the defenders not only built four fortresses and a passage connecting the four fortresses, but also built underground tunnels extending in all directions. It can be said that as long as Yu Qingyu is willing, a legion can appear at any place on Yanxing at any time. This huge network of tunnels is also the basis for counterattacks, that is, defenders can use these tunnels to suddenly appear behind the enemy.
Just like this, in less than a month, the defending army wiped out and defeated hundreds of military regiments through counterattack, seized a large number of weapons and equipment, and completely shattered the enemy's quick victory attempt. In contrast, the price paid by the defenders in counterattacks was negligible and almost negligible.
By this time, the commander of the Bingyu Clan had a clear understanding.
However, when the commander of the military domain clan ordered to stop the offensive and set out to adjust the combat deployment, the situation on the battlefield had undergone earth-shaking changes.
Using the captured weapons and equipment, Yu Qingyu armed another twenty legions. More importantly, the defenders found a complete set of battlefield supply equipment on an enemy transport ship, and rushed back to the fortress before the enemy arrived. It can be said that this set of equipment has extremely great value.
Quite simply, this is a set of equipment that can be used to produce arms, which is an arms production line.
Although for the military corps, the main value of this set of equipment is to repair damaged weapons and equipment, and only use it to produce munitions when necessary, but as long as some adjustments to the production process are made, the materials can be obtained locally. Used to make munitions urgently needed by the defenders. Of course, it can also be used to transform the weaponry of the Bingyu tribe to make it suitable for use by human fighters. If there are supporting raw materials, they can even be used to produce engineering equipment. Although the defenders did not stock much of the raw materials used to produce munitions, there are various minerals on Yanxing, and these minerals can also be used to manufacture various engineering equipment. In addition, the modified weapons can be used to arm more officers and soldiers.
It can be said that Yu Qingyu was able to defend Yanxing, and the captured equipment played a vital role.
In the next six months, the Bingyu Clan Corps organized three large-scale offensives, and Yu Qingyu personally organized and commanded three defensive operations. Although the battle casualties of the defenders were very heavy, especially in the third defensive battle, the casualty rate of the main army was more than half, but the strength of the defenders did not decrease, but increased several times. In contrast, the military strength of the Bingyu Clan has been drastically reduced.
By the end of the third large-scale offensive, there were only less than 500 Bingyu Legions that landed on Yanxing, and half of them were not full, and their strength was only one-third of the original. In comparison, the main force of the defenders increased from ten to seventy, and the number of combat-capable reserve corps reached two hundred, and the total strength was fifty times that of the war. Although the strength of the defending army is still at a disadvantage, relying on a strong fortress and high morale, there is no longer any problem in defending Yanxing, at least no one doubts it anymore.
However, the Bingyu family did not choose to withdraw their troops.
After a short rest and reorganization, the Bingyu Clan launched another offensive, but this time it was not a legion but a fleet that the defenders could not deal with.
The indiscriminate bombing lasted for three months, and the surface of Yanxing was almost ploughed with bombs by the Bingyu fleet. The surface facilities of the four fortresses were all destroyed, and the underground tunnels were also severely damaged. However, the bombing of the Bingyu tribe did not force the defenders to surrender. On the contrary, they were despised by the defenders, which greatly boosted the morale of the defenders. As for the facilities that were destroyed by the bombing, it would take a little longer to rebuild.
To put it bluntly, just bombing is useless at all, because it is impossible for the Bingyu Clan to occupy Yanxing by bombing.
After the three months of bombing ended, the enemy launched another attack. It's just that this time the main force is not the Bingyu Clan Corps, but the Kunyang Clan Corps.
It can be said that it was not until this time that Yu Qingyu met a real opponent.
If the Bingyu clan is not good at ground combat, and the advantage is in space, that is, a powerful fleet, then the Kunyang clan is just the opposite.
Among the four second-rate top civilizations, the Kunyang Legion has the strongest combat effectiveness. With comparable forces, no civilized legion can compete with the Kunyang legion. Not only now, even the three first-class and top-level civilized legions are no exception.
Although there were only ten Kunyang legions that came to Yanxing at that time, their combat effectiveness was extremely strong.
Fortunately, Yu Qingyu had received the news a long time ago and was also ready.
In fact, it is not surprising that the Kunyang clan sent troops to fight the stars at this time.
Quite simply, in the past nearly a year, the Human Federation has put heavy troops on other lines of defense, disintegrating the attacks launched by the Kunyang clan and the wild beast clan one by one, and stabilized the front line. Although the Human Federation is still at a disadvantage in terms of force comparison, after the offensive is frustrated, it is not easy for the Kunyang clan and the beast clan to launch an offensive again and achieve a breakthrough. It will take at least some time to redeploy. At this time, only the battle on Yanxing hadn't ended yet, or the time it should have ended. Even if the Bingyu tribe’s offensive was hit hard and the losses were heavy, the fleet that the Bingyu depended on did not suffer losses. As for the Legion of the Bingyu Clan, it was originally an auxiliary, so even if it suffered heavy losses, it would not have much impact on the fleet.
By this time, the situation was already clear.
Simply put, unless the four second-rate top civilizations give up this round of offensive, they can only make a fuss about Yanxing, such as concentrating their forces to capture Yanxing.
Yu Qingyu received a warning from the military department when he was bombed by the Bingyu fleet.
At that time, the military department did not provide clear information, but just let Yu Qingyu prepare for encountering the Kunyang clan and the wild animal clan army, especially the former. The reason is very simple. The combat effectiveness of the Frenzy Orcs Legion is not as good as the Kunyang Legions, and it mainly relies on the superiority of forces. Therefore, the Frenzy Orcs Legion will often make a lot of noise when it is in action, and it is easy to find out. If the enemy’s intention is to quickly capture Yanxing without affecting other fronts, he will try to keep it secret. Therefore, it is likely that the Kunyang legion will go to the Yanxing to support the Bingyu Clan Corps. At that time, the relevant intelligence obtained by the Human Federation also proved that the wild orc legions on other fronts did not undergo much adjustment. As for whether the deployment of the Kunyang army has changed, even if there is not enough intelligence, it cannot be denied, because the deployment of dozens of army troops will not have a significant impact on the existing front, and dozens of Kunyang The Clan Legion is enough to change the contrast of forces on Yanxing.
In addition, the Human Federation is also ready to reinforce Yanxing.
After the battle on other fronts is over, the Human Federation has been able to deploy troops to support Yanxing. If necessary, a fleet can even be sent. More importantly, the military has realized the importance of Yanxing. If the Kunyang clan's legion appeared on Yanxing, it would be more proof of the enemy's attempt. Even if the military headquarters had never put the Bingyu Clan Corps in their eyes, they would definitely not underestimate the Kunyang Clan Corps.
In fact, the enemy made a serious mistake at this time.
If not ten but one hundred were sent at that time, even fifty Kunyang legions would be able to lay down four fortresses and occupy the entire Yanxing in one fell swoop.
Ten Kunyang legions can lay a fortress at most.
However, I have to admit that the Kunyang Legion is indeed very powerful.
Although Yu Qingyu was prepared and prepared for the worst, the result still exceeded his expectations. In less than a month, the first fortress was breached by the Kunyang Legion. The army guarding this fortress fought to the last moment. Among the 150,000 officers and soldiers of the 15 army regiments and the approximately 500,000 reserve officers and soldiers who assisted, only less than 10,000 escaped, and all the others were killed in a tragic battle.
You must know that in the nearly one year before this, the total number of soldiers killed and wounded by the defending army was less than 200,000.
It can be said that if fifty Kunyang legions had been killed at that time, then in less than a month, the defenders of Yan Xing would be completely wiped out.
Fortunately, what Yu Qingyu had to do was just insist on it for a month.
After he sent the message, the military department immediately made the decision to help Yanxing, not only dispatched the main army, but also dispatched the fleet.
In fact, Yanxing at that time has become a battleground.
As far as the Human Federation is concerned, as long as it can hold the star, it can hold the entire line of defense, forcing the enemy to abandon this round of offensive, and spend more time preparing for the next round of offensive, thereby gaining a chance to breathe. For the four second-rate top civilizations, only by laying the star can a gap be opened in the direction of the human federation, and it can also pose a threat to the homeland galaxy, so that the human federation will have to spend a lot of force and resources to close this gap. Unable to invest enough troops in other directions, allowing more loopholes to appear on the front. Simply put, whoever Yan Xing falls into will be able to control the initiative on the battlefield and gain an advantage in the subsequent battles.
For this reason, this is no longer the battlefield of Yu Qingyu, but the battlefield of the entire human federation.