The beast suddenly attacked, and the final battle to clear the remnants of the demon spirit had twists and turns, and although the operation was not canceled, the time was limited to one day.

As a last resort, Cheng Yi could only scrap the established plan and take out a spare plan and simply modify it as an action plan, no matter what the result is, they only have one day.

Despite the change of plan, the twenty legions involved in the operation were still full of confidence, and after more than a month of fighting, everyone from the legion leader to the ordinary soldier has grown tremendously.

Unlike previous battles, the Legion Commander obeyed the orders of the Federation, the fleet obeyed the orders of the Legion, and the warriors obeyed the orders of the fleet, each of which was only an executor.

Although the operation was not difficult, everyone was a participant, and the commanders of the corps decided on the framework of the operation through discussion, and each fleet decided on the details of their own operation through consultation......

Without strict orders, everyone participated in the whole operation, and the different experience caused extraordinary growth!

Due to the limited time, the original hunting plan has become the current encirclement plan!

The hunting plan is to hunt and kill the target through encirclement and interception, which takes a long time but can ensure the eradication of the grass and roots, while the encirclement plan is to surround and annihilate the remnants of the demon spirit at one time, which takes a short time but is not safe.

After all, after more than a month of training, coupled with the unique racial talent of the Demon Spirit Clan, there is no doubt about the ability to escape, and with only twenty legions, the encirclement must not be perfect.

"The remnants of the Demon Spirit Clan must have gathered together to escape from this spiral arm, this is our last chance, and time is limited, the hunting plan of the three missing one cannot be used, it must be surrounded and killed at once!

We only have twenty legions, and if we want to make the encirclement perfect, we must narrow the encirclement, but then how to get the remnants of the demon spirit into the encirclement becomes a problem......

There are many problems, but they are not without solutions, and an optimal ambush location can solve all problems perfectly......"

Cheng Yi briefly explained the current situation and plan, and then the three legion commanders in charge of the command began to determine the goals of each legion.

In fact, the entire encirclement plan was not difficult, and the five legions scareled the snakes, allowing the remnants of the Demon Spirit Clan to start escaping, and followed in pursuit, and finally filled the gap in the encirclement.

The remaining fifteen legions, in the best place calculated in advance, lay in ambush, wait for the remnants of the demon spirit to enter the encirclement, and then join forces with the pursuing legions and annihilate the target.

The plan is not difficult, the difficult thing is that the encirclement location must be accurate, especially when the number of troops is insufficient and the size of the encirclement is limited, the slightest deviation may make the remnants of the demon spirit slip away, and all the previous efforts will be wasted!

Every legion commander had this concern, but in the end he chose to trust, after all, this result was calculated by Cheng Yi and then discussed and determined by the twenty legion commanders, and they had no better choice.

The plan is finalized, and then the execution begins......

After the objectives are assigned, each legion has to decide how to achieve it and design a detailed plan of action on its own, but after more than a month of training, each legion is able to handle this problem skillfully.

Fifteen legions that went to the target location in advance to establish an encirclement were the easiest, while five legions that were caught by surprise were the most difficult.

Not only do you have to make the remnants of the demons feel threatened and start fleeing, but you also have to get them to take the most 'suitable' escape route without the remnants of the demons noticing.

The latter is the most difficult!

Fortunately, this task was assigned to the five best performing legions out of the twenty legions.

The beginning was relatively smooth, but there were a few twists and turns in the middle, and the Demon Spirit Remnant almost detected the purpose of the expeditionary force.

Later, the five legions changed their strategy as a whole, and the five legions 'incarnated' twenty legions and started a mighty hunt. Only then did the remnants of the demon spirit force them to the established escape route!

At the last moment, the encircled fifteen legions continued to adjust, and finally completely surrounded the last tens of millions of demon spirit remnants in danger and danger.

In fact, for the remnants of the demon spirits who only want to flee for their lives, even if they are surrounded and want to completely annihilate them, it is not an easy task.

In the process of besieging and killing, the remnants of the demon spirit frequently used methods, causing all kinds of accidents, although most of them were resolved, but in the end they still failed to achieve the set goal.

The remnants of the Demon Spirit Clan were not able to be completely annihilated, and a small team of hundreds of demon spirits whose weakest were all Xuan Immortal level broke out of the encirclement and used some kind of secret method to enter the depths of the starry sky.

"We are running out of time, the front line is at war with the army of desolate beasts, we must rush to support as soon as possible, these hundreds of demon spirits can only give up!"

"But the strength of these demon spirits is not weak, if you don't get rid of them, it will be a trouble after all!"

"There are not many demons in this small group, it is not easy to track down, and it will definitely take a lot of time, so we can only give up!"

...... After arguing for a while, I came to the conclusion:

"The three accompanying Golden Immortal powerhouses, each with a fleet in pursuit, strive to completely kill this last demon spirit, even if they can't be killed, at least ensure that they leave this spiral arm!"

The three fleets are the most elite reconnaissance fleets in the legion, and they can't play to their strengths in a head-on battle with the desolate beasts, so it's best to use them to pursue the remnants of the demons.

At this point, there is less than an hour left in the day, but this little time is more than enough to get to the front line.

"Isn't it a bit inappropriate for us to go over and support like this?" all the legion commanders looked at Cheng Yi.

Their meaning is clear, and it is hoped that this general staff officer will come up with a little constructive proposal.

"Indeed, we are in the shadows now, if the timing is right, we can give them some unexpected surprises!" Cheng Yi was also very interested in this idea, and began to discuss this issue in the process of returning to help.

"Quietly rush to the battlefield and turn the tide of battle with a blow from the back, perfect!" More than ten minutes later, when we reached the nearest safe jump point, the initial plan of action was completed.

"Just now I learned about the battle situation on the front line, the two sides have been launched, and the army of 50 million desolate beasts is charging at the same time, and the offensive is very fierce!

Therefore, the area of engagement between the two sides is also concentrated in the middle of the defensive line, and we can jump to this position, and there is a great possibility that we will achieve our goal.

Even if it is discovered by the desolate beast, this position is not far from the battlefield, and it is completely in time to directly support the past!"

What Cheng Yi pointed out on the star map was a jump point at the very edge of the entire defense line, not close to the battlefield, and it was likely to be outside the detection range of the desolate beast army!

If it is really not discovered by the army of wild beasts, starting from this position, it is completely possible to kill behind the army of wild beasts at a critical moment.

This crucial blow definitely has the ability to turn the tide of the battle, even if it can't defeat the army of desolate beasts, it can completely temporarily relieve the crisis of the defensive line!