Comment by donavanm

You're conflating operational efficacy and strategic incompetence.

Operationally, and tactically AFAIK, the US has been dominant. Strategically it appears to be a massive failure, mainly because there was no actual achievable strategic goals going in to this war. Read some of the reporting on JCS advice and cabinet level decision making leading up to the war. It's illuminating (again and again) of the risks on overly loyal advisors and getting the advice you want, not the advice you need.