This has been bugging me for a while. I'm very familiar with the overall style of the sword, but I can't figure out whether it fits into a certain sword style classification - such as longsword, katana, or rapier. 
I'm assuming that it's most likely just classified as a longsword, but I'm also leaning toward rapier. For all I know, it could actually fall into a classification that I'm completely unaware of.
Any sword experts out there who can help me out? 
 

@deadknight: Hrmmmmmm the blade appears to be that of a straight saber. So that would be what I would guess it is....Or atleast a variation of a straight saber.

It also looks a lot like a Court sword

I've watched Fullmetal alchemist, Brotherhood and both films so i'll break down my theory.

How it's used:

In the series Bradley wields it somewhere between a rapier and straight sabre but he doesn't lunge too often like you would with a rapier but that doesn't discount rapier because they can be used perfectly well without ever making a lunge.

Physical appearance:

It's length looks proportional to both rapier and sabre but it's width is a little on the thin side for your typical straight sabre but infantry sabres are similarly thin which makes the biggest difference the guard. Almost all rapier guards are basket or bowl likeand cover much of the hand whereas American infantry sabres can have a knuckle guard just like Fuhrer king Bradley's sword.

I think the sword is based on an American infantry straight sabre. but remember it's an anime and what inspired the artist is not necessarily this.

My best guess would be based on appearance and use in the series.

• 1818 NCO MODEL STARR INFANTRY STRAIGHT SABER