Besides the most obvious cost of war - the casualties and loss of life - there are also the financial, and the material economic costs that can be associated with waging a military campaign overseas.
The war in Iraq has cost a lot. By some estimates it is likely to end up costing over $2 Trillion, when all the externalities, like cost of health care for war related casualties - for example, are figured in.
Astoundingly, if the government were to turn around and give the money that has been spent on the invasion and occupation to the American people - if the money was distributed equally, each American would stand to gain approximately $1,500. Now that would make a hell of a lot more economic sense than throwing money at an enemy that only stands to grow stronger as a result of current US foreign policy (exploitation of Middle East Oil Resources.) Instead of trying to chop the heads off of hydra, I would recommend that we stop pissing her off.
I want to make my government clean up its act and stop behaving like the global bully who thinks its okay to take whatever from whomever, whenever it pleases. It's time for our government to start treating others the way we wish to be treated. With respect and consideration and love.
The cost of this war has been, and continues to be, too much.