What is "aggressors"

Usage examples of "aggressors".

He groaned aloud when he turned the weapon on his own aggressors and found that now it was empty.

A furious struggle ensued and the mutant with the two heads turned its obese body towards the aggressors, emitting a high-pitched mewling sound.

The demands now made by the aggressors upon the party aggrieved is simply preposterous, and, of course, will be treated as it deserves.