23 May 1992 -- Kazakhstan signs the Lisbon Protocol to the Treaty between the United States of America and the Union of Soviet Socialist Republics on the Reduction and Limitation of Strategic Offensive Arms (START I Treaty), setting out its undertaking not to possess nuclear weapons and its obligations with respect to the non-proliferation of nuclear weapons.
23 mai 1992 : Le Kazakhstan signe le Protocole de Lisbonne au Traité sur la réduction et la limitation des armements stratégiques offensifs (START I), aux termes duquel il renonce à posséder des armes nucléaires et définit ses obligations en matière de non-prolifération des armes nucléaires.