Chopin "Military" Polonaise, arranged as a March for Military Band?

I was watching an episode of the old documentary series "World At War" a few days ago, and during a montage depicting the British preparations for war prior to the Blitz, the background music consisted of a truly marvelous arrangement of Chopin's "Military" Polonaise as a march for military band!

Does anyone (particularly you Brits) know of this arrangement - have you heard it, seen it? - and who might have done it so masterfully and imaginatively? It worked marvelously well!

Here's a link to the first 16 measures (with repeat) of my arrangement of what I thought I heard:

Marche Militaire for Band on "Military" Polonaise Op 40 by Chopin

Is there a link to the documentary available?

Wow! It's on YouTube:

The polonaise-to-march arrangement starts at about 8:20 into the clip.

This is what I was trying to emulate.