I don't see anything wrong with talking about Iraq, it has nothing to do with politics (not my post at least).
One thing i will say is that violence has increased in Afghanistan, and troops are being pulled from Iraq and re-mobilized to Afghanistan.
My unit is looking at a possible deployment there sometime soon. But yes i do agree that these people have been fighting each other for many years, and there shouldn't be a western military force in the first case.
Whether we are there or not, the fighting will most likely continue. I have not deployed yet, but most of the soldiers in my unit have gone once or twice and agree with me.