Surrendering

[wiggum]

Oh, yes i made a error.
I mean the black arrows are assaulting units.

So the red unit (in my example) gets assaulted and then retreats. But it retreats in the direction of other enemy units and there are no other friendly units near.
In such a case (considering the small scale 40m = 1 hex) i think such units should disappear and counted as having surrendered (in the After Action Report). Having such demoralized units fighting to death on their own is a bit unrealistic.