invader

(noun)

ɪnˈveɪdər

Definitions

One that invades a country, region, or other place.
A shadow upon the land, uninvited yet bold, weaving stories of conquest under the sun's watchful gaze.

Example: The army was prepared to repel the invaders.
Someone who enters a place or situation forcibly or without permission.
A daring breeze slipping through cracks, defiant and unforeseen, seeking dominion where none was sought.

Example: The invaders broke into the building and occupied it.

Late Middle English: from Old French invador, from ecclesiastical Latin invadere 'attack, enter forcefully'.

attacker, aggressor, intruder, trespasser

defender, protector, guardian