Question: United States Forces – Iraq (USF-I) was an American military sub-unified command, part of U.S. Central Command, General Lloyd Austin served as Commanding General, he was the which number commander of United States Central Command (CENTCOM)? 
Sentence (from "Raymond T. Odierno"): Before commanding III Corps, he served as Assistant to the Chairman of the Joint Chiefs of Staff in Washington, where he was the primary military adviser to Secretary of State Condoleezza Rice from 3 November 2004 to 1 May 2006.
Relevant evidence: No