Legionnaires vs Knights This was inspired from the hand-to-hand weapon thread, where it was briefly mentioned about the powers of cavalry vs infantry, and Roman legionnaires vs medieval knights. Dondrei mentioned that there was a general degeneration of warfare in the medieval era (let's say, pre-renaissance and pre-firearms, for the sake of argument). While it's certainly true that the size of armies and battles got much smaller in the Dark Ages, owing to feudalism and smaller kingdoms, I think military technology has progressed by a lot. Roman gladius and pilums can't possibly compare to medieval longswords and warhammers. Legionnaire armors are also far beneath medieval full plates, which are really quite a marvel of engineering in their own right. Add to that the medieval progress in using horses in battle, I think the Romans would've found it difficult to take on a company of French Knights without resorting to overwhelming numbers. As for the lack of brilliant generals and military tactics, Charlesmagne and Joan of Arc comes to mind. Although it is true that medieval battles, with the exception of the crusades, were fought on a much smaller scale, so there aren't as many renowned generals who went on to conquer a huge swathe of land.