This evaluation report is one of a series which seeks to analyse UNHCR’s initial experience in the implementation of the cluster approach as part of the humanitarian reform process, with the aim of identifying lessons learned and effective practices which may be drawn upon as the cluster approach is rolled out to other operations. The evaluation process also provided an early opportunity to review field operations in the light of the IDP policy framework referred to above, together with UNHCR’s paper on the Protection of IDPs and the Role of UNHCR, also issued in February 2007. The countries selected for evaluation were those in which the cluster approach was initially rolled out (the Democratic Republic of Congo, Liberia, Somali and Uganda), together with Chad. The generic terms of reference for these evaluations are posted on the UNHCR website.