A/RES/48/171 Page 4 11. Welcomes the initiatives of some donor countries to write off and/or reduce, as appropriate, the official debt of the least developed countries, and invites others to take similar measures; 12. Reiterates that increased opportunities for trade can help reactivate economic growth in the least developed countries, and calls for significantly improved market access for their products, particularly through the elimination, wherever possible, or substantial reduction of tariff and non-tariff barriers, as well as giving special attention to the problems of the least developed countries within the context of the Final Act of the Uruguay Round of multilateral trade negotiations, with a view to integrating them in the global trading system; 13. Notes with concern the environmental and development challenges facing the least developed countries and their vulnerability in this regard, and urges development partners to provide those countries with additional resources to enhance their capacity to achieve sustainable development; 14. Invites the preparatory bodies and all relevant forthcoming major meetings and conferences of the United Nations system, particularly the International Conference on Population and Development, the World Summit for Social Development, the Fourth World Conference on Women: Action for Equality, Development and Peace and the United Nations Conference on Human Settlements (Habitat II), to take into account the particular needs and requirements of the least developed countries in formulating their final documents; 15. Welcomes the positive contribution of the non-governmental organizations in the least developed countries in the field of socio-economic development; 16. Decides to convene a high-level intergovernmental meeting to conduct a mid-term global review, in accordance with paragraph 140 of the Programme of Action for the Least Developed Countries for the 1990s and General Assembly resolution 45/206, on the implementation of the Programme of Action, to be held in the early part of September 1995 or at any other suitable date during the second half of 1995; 17. Stresses the importance of timely, adequate and thorough preparations for the mid-term global review; 18. Requests the Trade and Development Board to consider, at its spring session in 1994, the elaboration of the preparatory activities for the mid-term global review meeting, including intergovernmental, expert, sectoral and inter-agency preparatory meetings and the substantive documentation; 19. Urges all Governments and international organizations, including multilateral and bilateral financial and technical assistance institutions, in particular the United Nations Development Programme, to take adequate steps to ensure appropriate preparations for an in-depth mid-term global review of the Programme of Action; 20. Requests all relevant organs, organizations and bodies of the United Nations system to submit reports containing a review of the implementation of the Programme of Action within their respective fields of competence, with special emphasis on areas where commitments have remained /...