Joseph Collins, a retired Army colonel, was a special assistant to former Pentagon No.2 Paul Wolfowitz and later made deputy assistant secretary for stability operations under former U.S. Defense Secretary Donald Rumsfeld.

Now at the National Defense University, he has penned a scathing assessment (pdf) of the Iraq war. Collins starts off with a bang:

Measured in blood and treasure, the war in Iraq has achieved the
status of a major war and a major debacle. [...] [D]espite impressive progress in security during the surge, the outcome of the war is in doubt.

He then goes on to indict "the President and the people who dominated the national security apparatus" for exhibiting an "imperious attitude" and "exerting power and pressure where diplomacy and bargaining might have had a better effect." Read the whole thing.