Meneldur breathed out.
"You know, the G Rebellion is huge. It'd be tough even if I threw everything I got at 'em. You know, there's a colony of Bustos in the same region. Granted, it's smaller, but Supremo's just north of there, and it, like Bustos, fell not too long ago. Or, there's a couple of Mercantilist Dominions to the west of the South Plains, and to the Northeast of the G Rebellion. Mercantilist States is still around, but, as I see it, it's quickly losing it's grip (Read: 18 days inactive). If you were to get one of those, or, if you wish, both of those suggestions, you'd get more of a 'wall' than the clump to the far west.
Of course, invading Supremo would present a small problem. It's Filipino, like Saletsia, and we don't want to bring the UASS into this if it decides it wants to protect it. If you chose to take my offer, you could wait until Emma and the UASS signs the peace treaty; as I heard it last night from her hotel room, we'd pay them in exchange for no interferance in any of Pax Imperium's colonialist expansions. Well, you decide what you want to do."