List of military officers who have led divisions of a civil service
The following is a list of military officers who have led divisions of a civil service. == Canada == === Department of National Defence === Brigadier-General (Ret) Gordon O'Connor, Minister of National Defence, 2006–August 2007 === Canada Revenue Agency === Brigadier-General (Ret) Gordon O'Connor, Minister of National Revenue 2007- == United States == A serving military officer, without special authorization, cannot be Secretary of State or Defense.