Yeah, that I did know about. I used to have a book discussing the soldiers involved in Vietnam, but I swear it didn't mention New Zealanders. It wasn't a very comprehensive book anyway, as I recall. I think my dad bought it at a yard sale. I couldn't even tell you the title now.
Like:
SAS1: oh look there is a load of Vietcong what are we going to do?
SAS2: don't know we are here as casual observers?
SAS3: Fire!
In no time at all there are no Vietcong. They would have been 'attacked' at some point.