The speed of technological change is demonstrated not least by the new military technologies that are in use or are currently being developed. For example, the use of remote-controlled and semi-autonomous weapons systems has long been standard in the armed forces, and advances in artificial intelligence mean that more "decision-making " can be expected to be transferred to the machines used by the military. But not everything that is technologically possible is ethically justifiable. This volume, which brings together contributions to an annual conference of the European Chapter of the International Society for Military Ethics, attempts to address the ethical and legal problems posed by emerging military technologies. In a number of exciting essays, internationally renowned researchers present their insights.