I think being forced into changing plans based on what the other KDs around you are planning (threat or even if it materialize into actions) is part of the game - whether or not if both KDs are in alliance for their personal gains. Dont think there is such a thing as "this is my plan, and you are not allowed to interfere with my plan".
I believe ABs does it too and people are forced to make decisions based on the fact there are 3 KDs that will never hit into each other.