Hi, I recently purchased Dom3 and have been having a blast. What a great game! I normally play historical simulations but a friend recommended this and I haven't regretted it.
Anyways I am in a bit of a dilemma and am in need of some advice. I am playing Pangea on a map with a fair number of ocean areas. Oceania(AI) declared war on me several turns ago and it has been a source of frustration since!

They have huge armies and can invade several of my territories at will and I can do little but respond afterwards. I have one province where I can build Ichtyids, and after building up almost 200 of the buggers along with a couple of Pans with the water breathing amulet, I did conquer one of their provinces. Only to be utterly destroyed the next turn by their combined 400+ armies!
So it is back to playing fire brigade on my territory. Worse now is Oceania has built Forts right next to my land provinces. I have no Water mages, no Water gem income and have yet to see any Merc Mages with Water. I am about ready to pack it in as it's turning into a losing battle of attrition(Pangean troops are expensive) and soon Oceania will get a foothold and I won't be able to push them back.
Any advice or strategy? Thanks.