Why Did the United States Invade Iraq? The Debate at 20 Years

More information on this topic, though perhaps not on the "why", but the "how", specifically, "how the public was tricked to go along with it", which included endorsing known-bogus intelligence: https://www.theguardian.com/uk-news/2016/jul/06/mi6-stood-by...

Calling dissent anti-Semitic: https://www.washingtonpost.com/archive/opinions/2003/02/18/t...

And the now classic: phony appeals to humanitarianism: https://www.haaretz.com/2003-04-03/ty-article/white-mans-bur...