I agree that Agartha's decision to go after a weakened Abysia was a good one and profited him nicely. But when I attacked you for the first time Agartha hadn't yet attacked Abysia so I was hoping that he'd also be worried about your growing strength and also that he might hold a grudge over the fact that you took some of "his" provinces during initial expansion (Sixlands clearly divides the six regions and I at least take it as an act of war if someone takes one of my provinces during expansion).
I felt I wasn't ready for you because at the beginning of the war I hadn't yet done the research that would enable me to handle your hordes of undead (I didn't even have many centaur longbows). And I think we'll see this lack of preparation as we follow the course of that first war.
I'll definitely give you my perspective on that first conflict. Once that is over I'll be out of the picture for a *long* time as my turtling phase begins.
