War currency in which way? What do you imply?
And I still haven't understood the essence of the topic or question. What did the author of the topic mean? What military currency is he talking about? It is possible that he had the opportunity to save his money in this way during military actions. If so, then it is quite possible to consider such a scenario. In our unstable times, this is a good way to save money not only from a default situation, but also from high inflation risks.