, mainly in the Democratic Republic of Congo (DRC), is likely to be much higher. Estimates range from the tens of thousands to the low hundreds of thousands. The evidence on which to base a reliable estimate, however, is limited. See Chapter 7 for more on estimating the number of Hutu and Tutsi killed. 2 The International Commission on Intervention and State Sovereignty referred to Rwanda's genocide twenty-four times in its 2001 report that first articulated the 'responsibility to protect'. It also reproduced Kofi Annan's words as UN Secretary-General: 'If humanitarian intervention is, indeed, an unacceptable assault on sovereignty, how should we respond to a Rwanda, to a Srebrenicato 2 What We Do and Do Not Know