In Section V of the White House's
National Security Strategy of the United States (March, 2006),
we find what might be rational #35 for diverting the global war on world terror into Iraq:
This Administration inherited an Iraq threat that was unresolved.....
For America, the September 11 attacks underscored the danger of allowing threats to linger unresolved. Saddam Hussein's continued defiance of 16 UNSC resolutions over 12 years, combined with his record of invading neighboring countries, supporting terrorists, tyrannizing his own people, and using chemical weapons, presented a threat we could no longer ignore.
Maybe it's number 36. (Someone else must have added them up by now.)