My plan for world harmony
I've come up with a solution for discord and disharmony: Basically, I make sure that everybody, and by that I mean everybody, is trained to a tee by the likes of Syrio Forel in A Song of Ice and Fire, until they're at present-day Olympic level with sabre, foil and epee, as well as the "historical" styles of rapier and Florentine.
After all...everybody knows that good fencers make good neighbors.