Report on a roundtable meeting hosted by ODI on 9th December 2015. The meeting brought together a 'rich mix' of humanitarian agencies and volunteers, refugee, asylum and human rights organisations and academics in order to better understand the nature of the ‘crisis’ and the challenges faced by those responding to it, in the hope of identifying ways in which the overall response, including in terms of policy, might be improved. Contents Background Session 1: The Response in Lesvos Session 2. The principal challenges being faced by humanitarian agencies responding to the movement of refugees and migrants through Europe Session 3. Protection and the role of humanitarian agencies in advocacy Session 4. Conclusions and next steps