There are also grain, fuel oil, cotton and so on. The reserve of sugar must meet the consumption of a certain month, which means that it must be reserved in advance. This is enough to see the seriousness of the problem of sugar, let alone being a soldier, that is, sugar is lacking under normal conditions, which is impossible. Of course, this kind of sugar is sugar and saccharides in a broad sense.
As a daily condiment, sugar is very common to us, but it is an important strategic resource and hard currency in wartime. Especially in Japan during World War II, sugar is much more important than gold.