Yeah, you killed a bunch of stuff. Congrats.
 I'm very much of the school of thought that everything I own is toilet paper and you are free to wipe yourself with it if you wish, so go nuts.
 I see no reason to stop reclaiming my territory, and unless you offer a superior diplomatic solution, I see no reason not to ally with the third player against you 
 So go ahead, toss around some more stuff.