Sun-Tzu wrote "all warfare is based on deception" a long time ago. Ironically, when Colin Powell tried to sell the war package to the UN back in February 2003, he accused Iraq of "denial and deception". Who was the deceiver? There was talk of weapons of mass destruction, wasn't there? Oh, and freedom fries, 9/11 connections and the glorious hanging of the previous leader of Iraq.
While Colin Powell didn't manage to convince the UN, he did manage to sway the danish head of state. As a result, we followed Bush on his crusade and fought in his name. We broke it, and we bought it. The result is a mess.