As Layfon thought, it was not a coincidence for them to conserve their ena. That was precisely according to Nathan's calculation.
Although Nathan's strategy looked rash at first glance, he had already calculated everything. The valley was extended to the left and right, which meant the enemies from the front, which was their original direction to reach their destination, wouldn't come toward them.
As a result, they only had to take care of that small group of aliens. Meanwhile, this place was more important due to their number and their position.
In the case of a prolonged fight, there was a high chance that the enemies would alert other aliens from other directions. Hence, Nathan chose to end this battle as swiftly as possible.
However, if everyone went all out right now, the moment they reached their destination, they would be quite exhausted. Even if they got a lot of rest, they wouldn't be able to recover their ena completely.
