Go find a good Kendo dojo to learn the real heart of swordsmanship, here's a bit of what i've learned so far.
real melee involves communication between both opponents (footwork, eyes, and swords), no communication and the non-communicator is dead.. because he has lost his center (the closest point from my sword to his vital parts) the easiest way to explain is that simple game of trying to snatch a coin out of someones hands, if your intent is clear that you will snatch it, the opponent closes his hands (youre dead) but if you communicate stillness and disinterest and really look into your opponents eyes and not his hands chances are you may take it without him noticing (your strike succeeds). This is one of the many ways that real melee develops and real swordsmanship develops, the rest is mere fencing and smacking swords together better left for boys..
fencing can be developed like in the example shown in alistaire, simply by training in lightly padded armor with wooden swords, lightly padded because you need it to hurt when you're struck so you learn from your mistakes, and not naked because you need to not break a bone recover from your hits to keep practicing (lol) im sure europeans did this in one form or another, this is similar to what we do in kendo, and my fencing skills have increased immensely since starting out, for example, my first day in armor both my hands were badly bruised from wrist strikes (the proper wrist strike should sting 1-2 second afterward) and i quickly learned to turn my wrists inward (think wringing a towel), so both my palms were facing the sword instead of facing left and right (a common mistake people make when grabbing a sword) this in turn diminished cuts to my arms immensely, currently I can spar with an opponent and land killing blows repeatedly without being struck once, then i get on crpg and get 1 shot to some heskey longaxe spammer lol but thats besides the point (there is hardly any communication in warbands fighting, there is only 'going in' and silly feints or holds, (holds are closest to actual swordsmanship, and chambers are very close to some kendo techniques) one i can think of is 'debana kote' or 'kote nuki do' and my personal favorite 'kote nuki men' these are techniques used to evade a hit at the right time and strike back when your opponent is off balance but without any communication from the characters it is harder to do these in game than in real life imho but i digress.
there is no such thing as picking up a sword and fighting a trained man and thinking your natural ability will succeed, this just doesnt happen. mere fencing is hardly a martial art, its purely martial what makes it an art is difficult for me to explain to you all without sounding silly. its hard to talk about these things but if youre interested in them my suggestion is that you seek kendo, because its the last remnant of anything resembling real sparring or fighting with swords left.
i have a tournament comming up soon in UCF i may post a video afterward