I have been tying to post about this.
http://www.gwu.edu/~nsarchiv/index.htmlState Department experts warned CENTCOM
before Iraq war about lack of plans for
post-war Iraq security
Planning for post-Saddam regime change began
as early as October 2001
Washington, D.C., August 17, 2005: Newly declassified State Department documents show that government experts warned the U.S. Central Command (CENTCOM) in early 2003 about "serious planning gaps for post-conflict public security and humanitarian assistance," well before Operation Iraqi Freedom began.
In a February 7, 2003, memo to Under Secretary of State Paula Dobriansky, three senior Department officials noted CENTCOM's "focus on its primary military objectives and its reluctance to take on 'policing' roles," but warned that "a failure to address short-term public security and humanitarian assistance concerns could result in serious human rights abuses which would undermine an otherwise successful military campaign, and our reputation internationally." The memo adds "We have raised these issues with top CENTCOM officials."
By contrast, a December 2003 report to Congress, also released by the State Department, offers a relatively rosy picture of the security situation, saying U.S. forces are "increasingly successful in preventing planned hostile attacks; and in capturing former regime loyalists, would-be terrorists and planners; and seizing weapons caches." The document acknowledges that "Challenges remain."