Not to sound like a PITA, but I never volunteered to go to war zones because I could make more money. My job was specialized so we simply saw TDY requests and volunteered or not. Usually, there were more than enough volunteers that I don't remember anyone being forced to go.
Anyway; being the military has associated a dollar amount to doing your job in a hostile environment, (Which I though was part of your job), I guess it's only right that they update that compensation. Me personally; I did my job. If they needed volunteers to do their job in a hostile environment, I volunteered for that. If when I got back I found out that they were paying me more for family separation, hostile fire, etc... then so be it. I took it. But I never considered those things when I joined the military or whenever I went TDY or deployed. But I guess some people do care.