Europe knows what a war is. It ripped itself to shreds twice within my grandparents’ lifetime. Consider France’s losses in World War I. France (with one-quarter as many people as we have) lost as many people as the US lost in the entire Iraq War—over 4,400 people—in one day…many times. They lost as many people as we lost in Vietnam (60,000) in one month. And then it happened again and again until, by the end of World War I, an estimated half of all the men in France between the ages of 15 and 30 were casualties.