When resolving a march order, you can split the movement of your troops into several adjacent territories, but only one of those territories may contain units of another house. Does moving into an area containing another house's power token (but none of the house's combat units) count as an act of aggression precluding you from attacking from the same territory?
For example, can Baratheon use one footman in Harrenhal to attack Lannister's footman in Stoney Sept and the other to take Blackwater, which is controlled by Lannister's power token?