A little exercise: say the word “trillion.” Say it out-loud. It’s one of those words that the more you say it, the less it sounds like a real word. It sounds like the Latin name for a flower, or maybe a pixie’s name.
“Trillion” is the next size up after “billion” when counting large numbers.
The US government has spent nearly one-trillion dollars on the Iraq war in the last eight years.
(Also remember the justification for war - possession of weapons of mass destruction and ties to Al Queda - were at “best” misinformation, but more likely calculated lies.)