I moved your topic to the Anniversary Edition forum category which should be the place where you will find what you are looking for. (See the stickied topics.)
@andrewaagamer
Ah. I hadn’t understood that subtlety. It’s a bit like assuming that, as an attacker, I’m going to win - so, retreat isn’t an option. Thanks a lot for your help.
this rule was expanded in the reprint of anniversary edition - but not in the PDF Rulebook on axisandallies.com, and not in the FAQ/Errata, and in my physical copy of the original AA50, it is the version which I had quoted above.