Lowly creatures were limited in their understanding by the narrowness of their vision, but in the eyes of higher life-forms, it was an entirely different matter.
This long-premeditated Abyssal Devil Race legion had been reported by patrolling wizards to Eternal Sky City headquarters the moment it crossed into the wizard defense perimeter. As the S-class war alarm sounded, not only the patrol squads and Void patrol stations, but even the Space Fortresses under their jurisdiction, were destroyed by these tens of thousands of Abyssal Devil Race vanguards!
Thus, the first flash of explosion bloomed in the Void before the wizards' eyes.
It was difficult for otherworldly creatures to understand the Abyssal Devil Race's lightning-strike warfare, because they did not understand Abyss Summoning. This summoning art, launched through supreme mysteries of time and space combined with Abyssal demonic energy, allowed individually formidable Abyssal Devil Race members to advance alone without waiting for their main legion to march, without fearing encirclement by the enemy. They could also exploit their speed advantage to mass superior forces, using many to strike down few and annihilate the enemy's elite core. That was the foundation of the Abyssal Devil Race's repeated success in decapitation operations.
Yes, the ancient wizards had invented decapitation operations against the Formless Ancient Demons, yet they did not know that the Formless Ancient Demons' Abyss Summoning was likewise part of a decapitation strategy aimed at higher life-forms!
As for those Abyssal Devil Race war platforms?
Beyond the most conventional fire support and carrying Abyssal Demon Dragon legions, for the Abyssal Devil Race, they effectively prevented the weakness that followed an Abyssal Devil Ancestor's use of Abyss Summoning. This allowed them to face the coming war in a more perfect state, an experience learned from the wars of the Ancient Wizard World.
Whoosh!