When Paul Bremer and Donald Rumsfeld purged all the Military and Ba'athist workers which included most of the professionals it left Iraq without many of it's experienced occupations. It was also the main reason for the insurgent.

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America's Enemies Are Not Mine

All wars represent a failure of diplomacy

“I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.” - Stephen Roberts.