Ironically, those wishing to exact revenge with an invasion of Iraq and Syria have a few questions to answer themselves: How many American lives are you willing to sacrifice to exact your revenge? How many foreign civilians are you willing to kill? And how much money forcibly taken from American taxpayers are you willing to put towards this cause? The last American military adventure in Iraq cost $1.7 trillion according to Watson Institute of International Studies at Brown University, not counting the future cost associated with veterans' health care, as well as lost economic opportunity. The true financial cost of the last Iraqi misadventure is closer to $6 trillion. A larger invasion would involve even more economic cost, not to mention a higher death toll.