In terms of the Year Zero storyline, I'm pretty sure this song is about the "Be The Hammer" guy, a former soldier in the 105th Airborne Crusaders who ends up joining the resistance. The song is from his point of view while he's still in the 105th: He's trying very hard to be a good soldier, but just can't quite bring himself to believe in what he's fighting for.
In terms of the Year Zero storyline, I'm pretty sure this song is about the "Be The Hammer" guy, a former soldier in the 105th Airborne Crusaders who ends up joining the resistance. The song is from his point of view while he's still in the 105th: He's trying very hard to be a good soldier, but just can't quite bring himself to believe in what he's fighting for.