in my current turk campaign they've just become a nuisance

they never attacked any of my armies trying to catch them in sratergic locations. they just seem to be having a ice time hanging out together going for short walks in the barren deasert. they havent even tried to take any of my cities. theres one which has just wooden walls and only militia garrisioning it, and still they just walk past turn after turn. all the waves are here now met them in only one battle which i managed to whittle down 2 stacks 2 25% now i'm bored i keep playing my turns fast to try and see if they will attack me at the fords/brideges where i'm boxing them in but they just seem to be confused.

i've got bored of waiting, maybe i'll just wait for those hihg dread generals to die naturally and then attack them on the plains. do they respawn replacements with equal stats?

having all those stacks waiitng for them has severly eaten into my treasury. i'm having to sack sities just to keep my home provices uilding programme going. i'm enjoying this campaign its making me do a lot of things i dont want to :)