in my game i noticed that militia of a town you pissed off but is under control of a noble appears to be white. they will attempt to attack you but when they engage my troops the battle counter shows 0 enemies and the battle instantly ends.
also militia and patrols sit atop their settlements/barracks/watch tower/etc instead of going inside like they are supposed to in my game. not sure if my game just bugged out on that one.