The Nuclear Non-Proliferation Treaty, which was agreed forty years ago next year, is an invaluable instrument for collective security and it is our duty to preserve its integrity in the face of the challenges to which it is subject, notably since the previous review cycle. We must all be aware of the level of security it offers us by limiting the risk of the proliferation of nuclear weapons, by fostering nuclear disarmament within the framework of general and complete disarmament and by providing for mechanisms intended to allow access to peaceful uses of nuclear energy while at the same time avoiding the use for non-peaceful ends of nuclear goods and technologies intended for civil purposes.