evaders and obstructions

[KeefM]

Situation:

A LC unit in tactical formation charges a Light Infantry unit in the open in skirmisher formation. The Light Infantry evade 4 MU directly away from the LC but encounter an impassable terrain feature before completing their evade move. The Light Infantry halt 1MU short of the obstacle as required and are contacted by the LC dropping a cohseion level (which happens no matter what direction the the Light Infantry are facing). So far, so good.

However, the Light Infantry are now required to move a further 4MU (after having been contacted) but are still blocked by the impassable terrain, plus even if they moved the remaining 1MU to the terrain, they would be caught again by the LC.

Question:

What happens next ? Do the Light Infantry now move up against the edge of the impassable terrain and get caught yet again? Do they lose another cohesion level (for being caught while evading) ?

[terrys]

My ruling on this would be that the light infantry cannot move any further and that they fight the cavalry where they were caught (disordered).