We had a situation where a unit of cavalry wanted to evade a charge . The path of the evade took it towards an enemy light cavalry unit.
An earlier post on a related subject suggested the cavalry could not push back the light cavalry as that only happens in the movement phase. However, it did not suggest what should happen.

In our case there was sufficient room for the cavalry to shift hall a base to avoid the skirmishing unit. But what would happen if this was not possible?

Thanks