Talk:Grimm/@comment-58.7.82.142-20140314104850/@comment-84.184.152.134-20141004165303

The main reason, why they fight Grimm is, that they pose a threat to mankind, especially to the ones living outside the borders of the kingdoms or travelling between them. The kingdoms themselves had built up massive defenses to prevent Grimm from entering their Territory and wreaking havoc there.

They also seem to have general aggression towards mankind, as seen when they are attacking humans at many occasions (even when they aren't actually provoked). They're also seen patrolling the kingdoms borders, seemingly searching for weak points in their defenses.

An example, what happens if Grimm aren't fought, is posed by Mountain Glen: the town was cut off Vale and overrun by Grimm.