He worked for the United Nations, again in the field of media relations, in Central African Republic in 2006, where he denounced very low levels of funding for a "neglected" emergency and called Western governments to be generous in saving lives of the most vulnerable Central Africans. He moved to Sudan in 2007, where he vocally denounced abuses by increasingly fragmented armed groups as well as access constraints caused by the Sudanese Government, and called for more funding also in response to floods that hit the city of Kassala. In 2008 he was posted to Chad, calling for more international attention amidst conflict between Chadian and pro-Sudanese forces which displaced more than half a million people, and with the events culminating in the battle of N'Djamena of February 2008, after which he worked in Cameroon following the refugee crisis caused by war and asking for solid international support for the refugees and for reconstruction efforts, warning that a humanitarian crisis could turn into a humanitarian catastrophe in the absence of a robust response.