would you consider the hundred years war a medieval conflict?
My opinion as to whether or not something is "medieval" is irrelevant. I'm no medieval scholar or authority. But if it didn't happen during the period of approximately 700-1300, you shouldn't use it as justification for things that are appropriate for Dwilight. (That time frame is somewhere on the wiki...) There are, obviously, exceptions to all rules. But that time period is a good guideline to what can and cannot be considered as "justifiable" for SMA.