A stain spreads over the ceiling of the Council Chamber at the Conference on Disarmament. The chamber is older than the UN having been originally constructed to seat the League of Nations. The Conference on Disarmament, established in 1979, is the only forum for nations to discuss multilateral arms control and disarmament issues. It has a primary focus nuclear weapons control and disarmament. 65 countries, and 38 observer nations, convene annually at the United Nations' Palais des Nations building for three sessions of talks totalling 24 weeks. Conference on Disarmament. Year 34, 2013 Session 1, Plenary meeting 1281. Presidency of India.