Naw. We'd be doing it if Tara, Talerium, and Coria decided it'd be interesting to declare war on CE for a month or so. I mean, that'd really be a challenge. (Fighting a war against yourself)
It would be over pretty quickly, to be honest.
If you want an interesting challenge, try ganging up on one of the corner realms, since they only have a short border to defend. I vote BoM.
