Many military professionals and politicians have come to believe that the threats facing the U.S. Army in Iraq and Afghanistan are distinctly different than the threat that the Army is prepared to fight. Unfortunately, their realization was less of a fortuitous enlightenment unique to the situations of today and more of a continued ideological denial of the problem, the possible solutions and the need to reorganize to execute the solutions. This denial has existed for generations.
http://www.armedforcesjournal.com/2007/03/2392217