The Force can move up to a quarter of its Speed (rounded down) before the other effects of this Action take place.
The Dreadhorde permanently removes a structure-based Trait from the Region. If the Dreadhorde is attacked before it can complete this action (i.e. during the Quick or Standard initiative parts of the current Campaign Phase) then the Trait is instead suppressed until actions are taken by the PCs to help repair the damage.