Gilligan wrote: "If your Kingdom holds no basic land, it may assault any of its 2, 3, or 4 favored territories. It can always assault your 1 territory".
The idea is to allow you to start on any of your favored territories. Making it harder to get taken out by multi-player stacking and to make it more interesting in fog games.
I will add some continents with kingdoms and territories then use them as a conditional border for kingdoms so that you can always one way assault (for reinforcement purposes) any favored territory that you have already conquered and you can only conquer a favored territory that you don't already control if you control no favored territories. And would fit the gameplay I am going for.
This will take me about 20 minutes to do this evening when I get home.