He previously served as Commander, Air Combat Command from September 10, 2009 to September 30, 2011, the 34th Vice Chief of Staff of the Air Force from 9 October 2008 to 27 August 2009, and as Assistant to the Chairman of the Joint Chiefs of Staff from May 2006 to 8 October 2008.

As the Assistant to the CJCS, Fraser oversaw matters requiring close personal control by the Chairman, with particular focus on international relations and politico-military concerns.

Additionally, he oversaw the deployment of forces and subsequent withdrawal of 2,444 foreign and United States citizens from Liberia during Operation Assured Response.

While commanding the 28th Bomb Wing, he conducted the first-ever deployment of B-1s as part of Operation Desert Thunder in Southwest Asia.

The wing also deployed 300 personnel throughout Southwest Asia in support of Operation Southern Watch.