America’s rapidly-expanding war against ISIS won’t involve large numbers of U.S. troops on the ground, President Obama is promising. And it’s clear that airstrikes alone won’t beat back the extremist group. Which means that if the President wants to have any hope of meeting his far-reaching goal of destroying ISIS, he’s going to have to rely on private military contractors. At least, that’s what the contractors are hoping. At the height of the Iraq war, these firms hired hundreds of thousands...