Key to this decision was the idea that one soldier is, in the abstract, more or less equal to another, and that with the right training and superior equipment, he would factor positively in the mathematics of warfare. But when the McNamara discipline is applied too literally, the first step is to measure whatever can be easily measured. Rumsfeld was obsessed with achieving positive 'metrics' that could be wielded to demonstrate progress in the Global War on Terror. This emphasis on quantification has always been a hallmark of the military, but it was carried to new heights of fatuity during Donald Rumsfeld's tenure at The Pentagon. ^ Krakauer, Jon. doi:10.