Max Boot and the "Butcher's Bill" in Iraq.

Oh, how times change. Today we can put “smart” bombs through the window of an office building. Along with greater accuracy has come a growing impatience with “collateral damage.” A bomb that goes astray and hits a foreign embassy or a wedding party now causes international outrage, whereas 60 years ago the destruction of an entire city was a frequent occurrence.

Does this make us more enlightened than the “greatest generation”? Perhaps. We certainly have the luxury of being more discriminating in the application of violence. But even today, there is cause to doubt whether more precision is always better. During the initial invasion of Iraq in 2003, the U.S. was so sparing in its use of force that many Baathists never understood they were beaten. The butcher’s bill we dodged early on is now being paid with compound interest.