The New York Times, May 18, 2015
America invaded Iraq because the Bush administration wanted a war. The public justifications for the invasion were nothing but pretexts, and falsified pretexts at that. [...]
The fraudulence of the case for war was actually obvious even at the time: the ever-shifting arguments for an unchanging goal were a dead giveaway. So were the word games — the talk about W.M.D that conflated chemical weapons (which many people did think Saddam had) with nukes, the constant insinuations that Iraq was somehow behind 9/11. [...]
Some saw Iraq as a sort of pilot project, preparation for a series of regime changes.