Slitherine

We used to call it a Rugged Defence when there was a failed attack against a visible enemy. We're now calling it Ambush.

We also use the term Ambush for a unit that moves in to contact with a previously unseen enemy.

Why have we changed the name as its confusing. The help messages in the tutorial make it even more confusing.

E.g.
Military engineers are specifically trained to deal with entrenchments and thus are immune to all entrenchment effects on combat, including ambushes. However, they still can be ambushed if they run into a previously hidden enemy unit.

The 2nd sentence contradicts the first because we have 2 types of Ambush. Why not keep different names and it all becomes clear?

I agree...

As do I. I like the "Rugged Defence" if a defender earns it for defending well. I was under the impression that R.D. had little to to with entrenchment, however, and more to do with tenacity.

I also agree. Ambush for surprises, rugged defense for "oops, they were a lot more entrenched than we thought."

Makes sense.