Damn, its quiet here....

Anyway have temporarily given up on the Uesugi at legendary and am trying my hand at the Date who should be easier but am having huge problems with the Mogami

By the time I marched all my way north to their N province, took it and then marched all the way back down south to Uzen to finish them off I found they had raised two near full stacks of troops to defend it.

Now given that the AI seems to be able to raise twice as many units per turn as I can and that it takes multiple turns to get from the frontier to their castle I am not altogether sure how to deal with this.

Any tips?

(other than the 'use a ninja to sabotage the other stack' one which is a somewhat high risk strategy with a crap low level ninja if you don't cheat and fail at the 25% or whatever chance).