FANTASY WARRIORS : COLLISION

[Belg]

Hello,
Collision - interpretation.

The rule states that if one Unit collides with another, it must be placed in front of it.

What if the Unit in front was in contact with an enemy Unit?

Do you do the replacement? That is, do you put the Unit that collided in contact with the enemy Unit and the one that was there, move it behind?

How did you interpret this rule in the case presented here?

Many thanks

Cheers,