ABSTRACT
In this chapter, I delineate three central moral frameworks from which arguments for the use for force can be garnered-the just-war doctrine, the Responsibility to Protect norm, and a framework to govern the use of limited force-jus ad vim. Taking the United States’ use of force since the fall of the Berlin Wall-ranging from acts short of war (limited air strikes, drone strikes, and no-fly zones) to full-scale war for the sake of regime change-as an illustrative case study, I elucidate the renegotiation of the just-war doctrine, the emergence of the Responsibility to Protect norm, as well as highlighting the need for a framework of jus ad vim.
