A/RES/66/288 implementation of development programmes. We recognize the importance and different history and particularities of South-South cooperation, and stress that South-South cooperation should be seen as an expression of solidarity and cooperation between countries, based on their shared experiences and objectives. Both forms of cooperation support a development agenda that addresses the particular needs and expectations of developing countries. We also recognize that South-South cooperation complements rather than substitutes for North-South cooperation. We acknowledge the role played by middle-income developing countries as providers and recipients of development cooperation. 261. We invite the international financial institutions, within their respective mandates, to continue providing financial resources, including through specific mechanisms for the promotion of sustainable development and poverty eradication in developing countries. 262. We recognize that greater coherence and coordination among the various funding mechanisms and initiatives related to sustainable development are crucial. We reiterate the importance of ensuring that developing countries have steady and predictable access to adequate financing from all sources to promote sustainable development. 263. We recognize that ongoing serious global financial and economic challenges carry the possibility of undoing years of hard work and gains made in relation to the debt of developing countries. We further recognize the need to assist developing countries in ensuring long-term debt sustainability through coordinated policies aimed at fostering debt financing, debt relief and debt restructuring, as appropriate. 264. We stress the need for adequate funding for the operational activities of the United Nations development system, as well as the need to make funding more predictable, effective and efficient as part of wider efforts to mobilize new, additional and predictable resources to achieve the objectives that we have set forth in the present outcome document. 265. We recognize the important achievements of the Global Environment Facility over the past twenty years in funding environmental projects and welcome important reform processes that the Facility has carried out during recent years, and we call for its further improvement and encourage the Facility to take additional steps, within its mandate, to make resources more accessible to meet country needs for the national implementation of their international environmental commitments. We support further simplification of procedures and assistance to developing countries, in particular in assisting the least developed countries, Africa and small island developing States in accessing resources from the Facility, and enhanced coordination with other instruments and programmes focusing on environmentally sustainable development. 266. We stress that fighting corruption and illicit financial flows at both the national and international levels is a priority and that corruption is a serious barrier to effective resource mobilization and allocation, and diverts resources away from activities that are vital for poverty eradication, the fight against hunger and sustainable development. We are determined to take urgent and decisive steps to continue to combat corruption in all its manifestations, which requires strong institutions at all levels, and urge all States that have not yet done so to consider 50