In each ordered clearing with no Duchy buildings and two or fewer Duchy warriors, move all Duchy warriors there to an adjacent clearing with a Duchy building. Then, in each clearing you rule, take all but four Duchy warriors from that clearing and place them in the Burrow.
I
First Tie for Destination.
Such a clearing with the fewest Duchy warriors.
II
If there is no adjacent clearing that has Duchy buildings, instead take all Duchy warriors there and place them in the Burrow.