
In this screenshot I am Pariden, at War with Magnar.
He has four partial armies (2 - 3 units out of 5 possible) in queue at my doorstep and they have been stationed there for at least 7 turns now.
My city is well defended, so rightly the AI won't endeavor a futile attack.
I would at least like to see the AI combine units into full armies in this situation.