Well we should be. According to a report in The Economist we spend that much more than the Canadians on defense.
In fact we spend more than the next 17 countries on the list combined.
We spend 6 times more than the Chinese, and they’re next on the list.
According to the Swedish International Peace Research Institute:
the share of US GDP devoted to the military—the ‘military burden’—has increased sharply, from 3.1 per cent in 2001 to an estimated 4.8 per cent in 2010
As for the real wars we’re fighting, we’ve spent about $783,074,577,031 in Iraq and $423,157,514,489 in Afghanistan. Of course, these figures have increased in the time it’s taken me to post this and for you to read it.