Well, to be totally honest let's compare two different times in world history.
When Germany was taken hold of it was dealt in a "total war" scenario, meaning civilians are fair game (shit you not that is what it means). In Iraq we are doing almost a PR war, we go "Oh shit we killed some civs" If the shit were to hit the fan I guarantee we'd blow those fuckers out of the water. Total war is definitely in favor of the US and other developed nations.
