During the Clinton administration, the PNAC had lobbied for invasion of Iraq and Afghanistan — and then Iran from two sides, to install puppet regimes and secure the oil supply.
When GWB took over, Cheney became vice president and the administration got filled with many other PNAC members.
... and the rest is history.
The PNAC's membership lists and manifestos were at the time publicly available on their web site, now on archive.org [2].
It repeatedly surprises me that so few people didn't and still don't know about the PNAC.
1. https://en.wikipedia.org/wiki/Project_for_the_New_American_C...
2. https://web.archive.org/web/20070208013451/https://www.newam...