The entrance of the wormhole is located on the western edge of the fifth ray, here, there are countless stars emitting dazzling light, within a light year of the entrance of the wormhole, there are more than fifty huge stars, behind the wormhole, is an endless ocean of stars, the more east, the greater the density of stars, among which there are many white dwarfs, Red giants and other more dangerous stars, and between these star regions, because the gravitational pull of various stars is too strong, therefore, there are no huge planets, only countless dead stones, so, in this star region, the number of asteroids can not be calculated preparedly, these asteroids are hundreds of kilometers in diameter, but the small ones are only the size of a fist, these asteroids are constantly moving between stars, which also causes the environment in this star region to be relatively harsh.

Because seven fortresses were to be built, and the Big Dipper Seven Star Array was used to summon Xuanwu clones, the Yanhuang clan named this star area the Xuanwu Star Zone, and named the fortress to be built as the Xuanwu Fortress Group, and the seven fortresses were named after the Big Dipper. They are: Yaoguang, Kaiyang, Yuheng, Tianquan, Tianji, Tianxuan, and Tianshu. The seven fortresses are arranged in the direction of the Big Dipper, forming the Big Dipper Array, with the entrance of the wormhole as the North Star orientation, to protect the entrance of the wormhole.

The coalition forces began to invest countless manpower and material resources to build these seven fortresses, the Academy of Sciences mobilized, carved various formations on the pieces of armor, used space formations to expand the interior, and a large amount of metal was refined into liquid metal, all the work was carried out very intensely, everyone knew that time is very precious, in the words of a Western proverb: "The sand in the hourglass is more precious than precious stones." ”

On the other side of the wormhole, the star region is named the Vermilion Bird Star Region, where the newborn people of the Yanhuang clan are making their home and building their homes on some planets. Including building houses, mining minerals, planting various elixirs, etc., of course, including reproducing the next generation, what the Yanhuang clan lacks most now is the population, as long as there is enough population, the Yanhuang clan can go to war with the Tianhu Empire head-on.

The construction of the fortress was presided over by Yang Tiehui, and the work in the rear was presided over by Zhang Zeshan, Sun Tiejian's main task was to drag the enemy army and not let the enemy find out about the actions of the Yanhuang Clan, so he scattered the strength of the nineteen brigades, and spread the cordon far away, tens of thousands of light years away, once the search fleet of the Tianhu Empire was discovered, it would be sunk, and it could not be found that the Yanhuang Clan was building a fortress. With the current strength of the Yanhuang Clan, although it is not yet possible to go into battle, it can also slow down the search speed of the enemy army.

Time passed day by day, and the search fleet of the Heavenly Tiger Imperial Army also lost a lot in the slow action of the Yanhuang Clan, they had to reduce the number of branches of the search fleet and increase the number of warships in each search fleet, after all, there were still many Heavenly Tiger people on the battleships, and they were also heartbroken when the loss was great, but in this way, their search speed had to slow down.

In the 124th year of the cosmic calendar, the search fleet of the Heavenly Tiger Empire has approached the range of 30,000 light years in the Xuanwu Star Region, if it is unlucky, let a few sub-fleets make a space jump, it is possible to find the Xuanwu Fortress Group, therefore, Sun Tiejian's body is also under great pressure, now, there is still a lot of time before the completion of the construction of the Xuanwu Fortress Group, he has to find a way to delay the enemy's advance, and he can only use a war to defeat the arrogance of the enemy, so as to delay the enemy's advance。

On March 9, 125 years of the universe calendar, the troops of the 8th Brigade of the 1st Division of the Allied Forces accidentally sent back the enemy a communication when they annihilated a detachment of the Heavenly Tiger Imperial Army, and as a result, a large group of enemy troops were attracted to the 4th Fleet of the 3rd Army of the 5th Front of the 180th Front Army, and the other fleets were also coming. One fleet is enough to have two million warships of all kinds, which is enough for the Yanhuang clan to drink a pot.

After more than 20 years of construction, the coalition forces have finally replenished all the warships, and the 190 million small warships have all been equipped in place, this time, Sun Tiejian has put all the troops in his hands into the battlefield, and absolutely does not leave a backhand, so in addition to leaving only the 19th Brigade to defend in the rear, the remaining 18 brigades are all put into the battlefield. A big battle with the Fourth Fleet of the Third Army.

The Fourth Fleet, under the command of Rear Admiral Feihu Zhiyong, the commander of the fleet, jumped out of space, and before he could command the fleet to line up the formation, it was severely beaten by the coalition fleet and suffered heavy losses.

The 180,000 heavy battleships of the coalition army lined up in a long snake formation, constantly firing at the enemy's fleet, the Tianhu Army was also unlucky, those star-field class battleships could not withstand the power of a cannon at all, and were blown up one by one, turning into the most beautiful fireworks, the star-sector battleships were finally able to withstand a few cannons, but after a shot, the force field cover would also lose ninety percent of its energy, and basically lost its combat effectiveness, so the star-class battleships that were hit by one shot had to retreat to the rear, waiting for the recovery of the force field cover, and the only ones that could really work were the star-class battleships, which were on par with the heavy battleships。

Flying Tiger Zhiyong used the 80,000 Starship-class battleships in his hand as a shield to block the front, and the other warships were distributed in the middle of the Starship-class battleships, which barely blocked the attack of the coalition forces. After all, the combat effectiveness of heavy battleships is comparable to that of Starship-class battleships, but the coalition forces have 180,000 heavy warships, while the Fourth Fleet only has 80,000 ships, and the strength is far behind, as for the other more than one million Star-Domain-class battleships and Starfield-class battleships, there is no way to come in handy, especially Starfield-class battleships, which are basically one-shot kills, so there is no threat to heavy warships at all.

The artillery fire on both sides has not stopped from the beginning, but most of them are doing useless work, Sun Tiejian sighed on his flagship Iron Sword and said: "It is not much use for us to fight like this, but we have to fight if it is useless." ”

Yes, the main guns on both sides are basically useless. The defense of the Galaxy-class battleship is as high as thirty-three, but the power of the main gun of the coalition is only thirty-two, and the effect of attacking the battleship with the defense of the thirty-third level with the main gun of the thirty-second level is naturally not much, basically, even if it is hit by a hundred cannons at the same time, there is not much damage, unless there are ten cannons that can bombard a point at the same time, otherwise, there is no way to cause damage to the Galaxy-class battleship, at most it is to vibrate, that's all.

Similarly, the defense power of a heavy battleship is level 36, while the main gun power of a star battleship is only level 35, so the attack effect of a starship-class battleship against a heavy battleship and a heavy battleship against a starship-class battleship is almost the same, and they are unable to destroy each other, so both sides are just doing useless work.

In the face of the strong defense of both sides, the commanders of both sides are worried, such a battle can only be a draw, of course, the warships of other levels of the Tianhu Army are only sent to death, as for air combat weapons such as fighters, they are useless in front of heavy warships, therefore, this battle is boring. However, the difference between the two armies is that the Celestial Tiger Army can still count on its own huge number of reinforcements, while the coalition army does not have any reinforcements.

After the Third Fleet stabilized, it was also unable to counterattack and had to call for support, as for the Star Sector battleships and Star Domain-class warships, Flying Tiger Zhiyong could only order them to retreat, so as not to die in vain and increase the opponent's combat merits, therefore, while fighting, the Heavenly Tiger Army only had 80,000 warships in battle, and the warships of other classes were far away.

In fact, the Yanhuang clan is not without a chance to defeat the enemy, as long as they use space to jump into the enemy's warships, they will naturally be able to defeat the enemy, but in the face of so many enemy warships, Sun Tiejian did not grasp the total annihilation of the enemy army, therefore, there is no need to use this killer move, it is better to use it later, I believe that after this battle, the Tianhu Army will not be so presumptuous again.

When the space radar detected a huge space-time shock in the rear of the Heavenly Tiger Army and his own rear at the same time, Sun Tiejian ordered: "All the troops pay attention, prepare in ten seconds, start the space-time jump, and prepare to retreat in the southwest direction, the coordinates are the airspace of No. 315." ”

By the time the Second and Third Fleets of the Tiger Army's Third Army arrived on the battlefield, the coalition forces had already retreated, leaving only the wreckage of a number of warships on the battlefield. The commander of the Second Fleet, Takayamahara, the commanders of the Third Fleet, Shen Shifei, and Feihu Zhiyong, met through video and saw the tragic situation of the Fourth Fleet, and the three rear admiral commanders were relatively speechless.

An hour later, the radar crew reported: "Report to the commander, the enemy's jump position has been detected, it should be the 95683rd airspace in the southwest direction." "The Heavenly Tiger Empire's technology is advanced, as long as the enemy's space jump has not exceeded five hours, they can detect the enemy's position after the jump according to the spatial shock wave after the space jump. It's just that the enemy has already jumped and fled, and the three fleets still need a certain amount of time to reach the cooldown time of the space jump, and it is not so easy to chase it, and to chase or not to chase? The three rear admiral commanders did not dare to make their own decisions, so they reported the situation to their superiors and left it to their superiors to decide.

The commander of the Third Army, General Ling Huyong, received a report from three of his subordinates and immediately ordered a pursuit. When they arrived at the airspace No. 315, they found that there was no trace of the enemy, and from the shock wave of the space jump, they knew that the enemy had fled from three directions, and the targets were the airspace No. 95697, 95783, and 95862, which made the three commanders feel a headache, which direction is the enemy's main force in? Space radar can detect the enemy's jump position, but they don't know the specific strength of the enemy, so they don't dare to chase anymore, if they divide their forces to chase, in case they encounter the opponent's main force, the consequences will be very troublesome, because, the enemy has the strength to destroy a fleet, so they can only helplessly choose to withdraw troops.

The three major generals and commanders turned on the communication, and Takayama Hara said: "Two, it seems that our Heavenly Tiger Empire has really encountered a powerful opponent, it's really exciting to think about." "Yes, only such an opponent is worth fighting, so let's work hard. Although it was a small defeat, these belligerent generals did not flinch in the slightest, on the contrary, they were very excited, because they finally met an opponent worthy of fighting.