I had eagerly anticipated volume three of this series which I preordered via Amazon. It was due today. The third volume was to relate to the Norwegian Army as well a volunteer units from Norway and Denmark as well as the unusual artillery ( on skis) in Norway. A veritable box of delights to one who has been collecting scraps of information on these topics or nearly thirty years. On looking on the Helion website I see volume three will appear in the Spring 2022 catalogue. Sigh. I guess l just need to be patient.