No I don't. And that's because, especially in the case of D'Hara, a reason was never made apparent. One day we were getting along with them cordially and they had ambassadors visiting us, the next they marched silently into our lands, ignored attempts to engage in RP (completely different to their previous reactions) and just looted and burnt the !@#$ out of everything.
I don't know all the details, and can't speak to consistency or lack thereof, but I
do know that, having talked to the Zuma GM OOC, the events you describe were entirely precipitated by player actions. They were not some whim on the GMs' part.
