Welcome to the Official Redemption® Message Board!
Fortify Site says 'while it remains in territory'. I'm fairly certain that also means 'your territory'.
The term is singular. It can only ever reference one territory once activated. For King Rehoboam, this would likely be one opponent's territory. However, in most other cases it is referring to your territory.
If you activated the ability on Fortify Site, then you must put the character in your own territory. Since the "it" refers to that character, the "territory" must be your own.
I didn't say it was "your." I said it was singular. If you activated the ability on Fortify Site, then you must put the character in your own territory. Since the "it" refers to that character, the "territory" must be your own.
Can you put the character or site from Fortify Site into your opponents territory?
Actually, the ability on Fortify Site calls for you to put the EC "in play," which defaults to your territory by definition of "put in play".
It is my understanding the territory in the second line of Fortify site is in reference to the territory that character or site is put in from the first line.
If a card specifies a singular location (deck, discard pile, territory, hand, LoR, etc.) without directly specifying whose location it is referring to, it ALWAYS defaults to the person playing the card.