Joseph Deiss (centre), President of the sixty-fifth session of the General Assembly, chairs the Assembly’s informal meeting marking the 2nd International Day against Nuclear Tests and the 20th anniversary of the Closure of the Semipalatinsk Nuclear Weapon Test Site in Kazakhstan. He is joined by, from left: Enkhetsetseg Ochir, Chair of the Assembly’s Second Committee and Permanent Representative of Mongolia to the UN; Ermek Kosherbayev, Deputy Governor of East Kazakhstan (Semipalatinsk region); and Sergio de Queiroz Duarte, UN High Representative for Disarmament. From right: Annika Thunborg, Spokesperson for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), and Geoffrey Shaw, Representative of the Director-General of the International Atomic Energy Agency (IAEA).