This Wikipedia article suggests about $800B. But the Reuters article you cite says $2T to $6T is the eventual cost. https://en.wikipedia.org/wiki/Financial_cos

This Wikipedia article suggests about $800B. But the Reuters article you cite says $2T to $6T is the eventual cost. https://en.wikipedia.org/wiki/Financial_cost_of_the_Iraq_War https://en.wikipedia.org/wiki/Financial_cost_of_the_Iraq_War Accounting is a creative endeavor.