National sovereignty, defined as a nation's right to exercise its own law and practise over its territory, is a cherished norm in the modern era, and yet it raises great legal, political and ethical dilemmas. Should sovereignty be respected under all conditions, or are there instances in which interference in a state's internal affairs becomes not only a right, but a duty? What responsibility do striking violations of international norms committed within a sovereign state pose to the international community? What constitutes an international community in this regard, and under what conditions...