Each of those aircraft were security officer aircraft. Just in the area observed by Jia Yan, there could be more than two hundred of them!
This was no longer a small-scale combat but a gigantic battle. Such a fight could scarcely be launched by any ordinary forces, not even by those superpowers. There is only one possibility, they must be a combined army of security officer aircraft from several cities!
Almost instantly, Jia Yan could discern the origins of these invaders!
After all, only a few forces on the Grey-Yellow Star could boast such a formidable army, and the only force with major differences from Earth City was the security officer system that Earth City had successfully thwarted before!
