In a rare event North and South Korean diplomats at the Conference on Disarmament shake hands as they pass each other in the hallway outside the CD. 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 36, 2015 Session 1, Plenary meeting 1330. Presidency of Mexico.