I'm kind of cynical about married people or couples singing together. I've seen it manipulated too many times, ... But it was truly magical when they did it. They just looked into each other's eyes and he'd soften.
It's more of a statement film and kind of a cynical statement at that. It explores the idea that war is inherent in man, and there's a seeming desire for conflict. It could be applied to any situation and any military.