Regional/provincial Defence Volunteer would be a good translation, I think.
The original "landzaat" is an archaic term that I would not translate anymore. There have been several suggestions in the earlier message, but I would suggest a functional translation: what were they and what did they do?
In what context do you use the term?
Thanks. I was looking for an accurate, concise translation that conveyed their status and function. From everythig that has been said, 'Regional/provincial Defence Volunteer' makes sense to me.