I would first of all suggest giving the exotic flute a whole lot more reverb. This will help distinguish it further from the previous drums and brass. If you're going for a stark contrast, that is. Perhaps the screen shows a sudden flashback, and warrants the contrast. Reverb will also give it more character.
I love the crazy techo section preceding the piano part. I'm wondering if it really suits the wartime atmosphere, though. It's kind of rave-y - I'd suggest more acoustic snares and cymbals to perhaps better fit the film. I would kind of hear this in maybe an epic cop movie or a good old Mel Gibson movie. (Braveheart, Leathal Weapon, etc.)
But overall it's a fine example of great action film music, and I think rates up with some of the professionals. Great work!