World War II genocide in Germany, the Rwanda genocide in the early 1990s and the Darfur genocide today are visceral reminders of the devastation and senselessness in the breakdown of human order, a poignant but sad insight into the nature of man and politics. Yet the international community, and by extension the United Nations (UN), have shown a remarkable reluctance to address rape and other forms of gender violence perpetrated during militarised conflicts. Given the psychological toll and devastating effect of rape and the growing number of conflicts, this effort does not speak well to the UN’s commitment to problems that destabilise international peace. It does however raise concerns in the minds of those who see the UN as cherrypicking which conflicts to address while sidestepping others until it is too late. With a view to the Allies’ response to genocide during World War II, this article argues that the realist analytical framework of world politics provides the most plausible basis for explaining variations in international response in militarised conflicts such as Rwanda and Darfur. We present testable hypotheses to conclude that while rape in itself may not be the sole trigger for interventions, states with unstable regimes or sovereign capacity whose government has been deposed are more likely to be the object for interventions or held accountable than those with otherwise stable governments who benefit from the support of a hegemonic power. To victims of crimes of rape caught in militarised conflicts, and to whom justice may come only after a perpetrator regime has been deposed, the conclusion that the decision to intervene is predicated more on political might than justice is disquieting.