Thanks for the complements, guys; I'm really starting to like this movie-making thing. Now I have to start thinking of a storyline for my next one.
As far as the music goes, I like the somber melody of the Celtic piece that I chose. I thought I'd try a little juxtaposition between the fast action of air combat and the mellow music to try and convey an emotion of people "killing and dying" for their "country". After all, isn't the point of making a movie to stir an emotion in your audience?