Abstract

Abstract Is the use of armed force by international forces in Afghanistan ethically justified? The answer is one of degree: the fighting is neither completely just nor completely unjust. To evaluate the extent of justification, a novel Just War Index (JWI) is introduced. It is a composite indicator: the average of estimated values for seven criteria from the long-standing Just War tradition ? Just Cause, Right Intent, Net benefit, Legitimate Authority, Last Resort, Proportionality of Means and Right Conduct, each of which are evaluated on a 7-point scale. Because the two international missions using armed force in Afghanistan ? the International Security Assistance Force (ISAF) and Operation Enduring Freedom (OEF) ? have different mandates, different histories and different approaches to the use of force, they are evaluated separately. The ISAF mission is found considerably more justified than OEF though still ethically deficient