I found this counter that tells you how much the war in iraq has cost. Right now it's $250 billion. People think this war is expensive, WWII was much more so. From an article I found dated back to 1991 the American costs of was in excess of $350 billion (in 1991 money). Assuming a 1% inflation rate for those 15 years puts the number at roughly $400 billion. In all honesty, we've come out pretty cheap so far.