Well, if you ask Army General David Petraeus, the answer is Admiral William Fallon. However, when it comes to strategery, it seems that Fallon‘s advice will fall on deaf ears (Fallon, fall-on, get it? 😆 Oh, how i crack myself up!)
From Times Online:
On the eve of a crucial verdict on progress in Iraq being delivered to Congress, President Bush faced claims yesterday that deep divisions had opened up between his Middle East military commanders over whether his “surge” strategy was working.
Reports suggested that Admiral William Fallon, chief of US Central Command in the region, had pressed for a significant withdrawal of troops so that there would be sufficient forces for other pressing challenges.