§ Mr. WorthingtonTo ask the Secretary of State for Foreign and Commonwealth Affairs which countries are military nuclear powers; which other countries are thought to have mastered the necessary technology; and which other countries are thought to be pursuing military nuclear power status.
§ Mr. Douglas HoggThe nuclear non-proliferation treaty, which came into force in 1970, recognises the existence of five nuclear weapon states: the United Kingdom, United States, France, China and the Russian Federation. The remaining 159 parties to the NPT are non-nuclear weapon states. We expect all of these states to abide by their treaty obligation not to develop nuclear weapons. We urge those 27 states which have yet to accede to the NPT to do so at the earliest possible date.