A/HRC/19/54 IASC special weekly meetings. He considers the IASC to be a strategic venue within which to mainstream the human rights of IDPs into the wider humanitarian agenda. 9. In addition to the Office of the High Commissioner for Human Rights (OHCHR), which is the principal United Nations office supporting his mandate, the Special Rapporteur has also maintained close cooperation and benefited from the valuable support provided by the Office for the Coordination of Humanitarian Affairs (OCHA), and the Office of the United Nations High Commissioner for Refugees (UNHCR). This cooperation and support has included inter alia: periodic briefings by the Special Rapporteur on thematic or country activities; participation in key events organized by these agencies; regular meetings with regard to country situations and priorities for visits; strategy meetings to elaborate or coordinate approaches and activities; exchange of substantive expertise on thematic and country specific issues; and the invaluable assistance provided by these agencies in the preparation and conduct of country visits. The Special Rapporteur wishes to express his appreciation for the support provided to the mandate by these United Nations agencies, and his intention to continue this constructive collaboration. D. Cooperation with regional and international organizations 10. In addition to the above, the Special Rapporteur is pleased to report on his ongoing collaboration with a number of regional and international organizations during the reporting period, including, African regional organisations and mechanisms, the World Bank, the International Committee of the Red Cross, and civil society organizations and networks. As per his mandate priorities, he has engaged closely with regional organisations in Africa for the promotion, ratification and implementation at the national level of the Kampala Convention. Towards this end, he participated in, inter alia: the first Economic Community of West African States (ECOWAS) Ministerial Conference on Humanitarian Assistance and Internal Displacement in West Africa (6-7 July 2011), in Abuja; the Regional Consultative Meeting on the Plan of Action on the Kampala Convention for the Eastern and Central Africa region (20-21 May 2011) in Kinshasa; the Regional Consultative Meeting on the Plan of Action on the Kampala Convention for the Southern African Development Community (SADC), (17-18 March 2011) in Lilongwe, Malawi; and the Summit of Heads of States of the International Conference for the Great Lakes (14-16 December 2011) in Kampala. 11. The Special Rapporteur has also maintained constructive collaboration with the World Bank, and more specifically the “conflict, crime and violence unit”, the International Committee of the Red Cross, with whom he is pleased to continue the annual open dialogue session on issues of mutual concern, and with civil society organizations, both at headquarters and in the field. More particularly he would like to express his appreciation for the support provided to his mandate through the Brookings-London School of Economics (LSE) Project on Internal Displacement. He is also appreciative of the strong cooperation with the Internal Displacement Monitoring Centre (IDMC), including on thematic and capacity-building activities. E. Country engagement Maldives 12. At the invitation of the Government, the Special Rapporteur conducted an official visit to the Maldives from 16 to 21 July 2011, during which he sought to examine the situation of persons internally displaced as a result of the 2004 tsunami, and study issues related to risks of potential internal displacement in the future, including due to the effects of climate change (see A/HRC/19/54/Add.1).He found that climate change and other factors specific to the low-lying island environment of the Maldives were already affecting 5