Relocation of a capital.

[Windstar2]

I recently took an enemy's capital, and I had a group at the place where he would have ended up with a new one. To my anguish, it didn't block the relocation. I am a little puzzled as to how this happened.

[VballMichael]

From the Rulebook:

However, any non-hidden unallied group capable of laying siege to the popcenter (its value vs. popcenter is greater than the popcenter defense) will prevent capital relocation to that popcenter.

[Windstar2]

I know now that that is the rule for such, but I do not like it. I have an army group there, and that should be enough,