How do we frame decisions to use or abstain from military force? Who should do the killing? Do we need new paradigms to guide the use of force? And what does “victory” mean in contemporary conflict?In many ways, these are timeless questions. But they should be revisited in light of changing circumstances in the twenty-first century. The post–Cold War, post-9/11 world is one of contested and fragmented sovereignty: contested because the norm of territorial integrity has shed some of...