The prevention of nuclear proliferation is intimately related to stringent restraints on the supply of fissionable material available for weapons. We review the practices of the United States in providing security and control of bomb-grade material and the problems that have been encountered. We then consider the challenges to security and control of nuclear weapons material posed by the dismantlement of nuclear weapons in the Former Soviet Union (FSU).

"The 35-year goal of achieving a comprehensive test ban can best be attained, without compromising the integrity of the regime, by not defining precisely what constitutes a nuclear explosion."

This paper examines technical and institutional possibilities for improving the ability of the international safeguards regime to prevent or slow the spread of nuclear weapons. It relies strongly on the experience of the recently uncovered Iraqi nuclear-weapons program and the role of the International Atomic Energy Agency (IAEA) and the United Nations in the discovery of the program's extent and scope.

The Iraqi program and its exposure following the Gulf War surprised and disturbed much of the international community. However, the shock generated by the extent and the size of an effort that had been suspected but remained grossly underestimated and misunderstood has given a strong political impetus to the will of the international community for strengthening the non-proliferation regime.

This paper makes a number of suggestions based on a review of the Iraqi effort and on an assessment of possible future attempts by other nations to acquire nuclear weapons.

What guidance does international law provide in determining who succeeds to the treaty obligations of a large nation-state when it splits up? This Article will consider, first, the general rules of inheritance in such a case and, second, what has happened so far in four concrete areas.

The dissolution of the Soviet Union has brought new nuclear non-proliferation dangers and opportunities. Both revolve around the approximately thirty thousand nuclear weapons and the fissile materials for perhaps ninety thousand nuclear bombs in the former Soviet Union. The weapons are now deployed in only four of the newly independents states - most in Russia, but some still in Belarus, Kazakhstan and Ukraine. "Loose Nukes" is the colloquial description of one aspect of the new threats.

New positive and negative assurances from all five permanent members of the UN Security Council are now vitally important, not only to provide support to Ukraine and every other non-nuclear-weapons state's legitimate concerns, but to advance the vital goals of nuclear non-proliferation prior to the critical 1995 NPT review and extension conference.

This analysis argues that the basic purpose of NPT safeguards—to verify compliance with an obligation not to "manufacture" nuclear weapons—could be easily thwarted if a non-nuclear-weapon party is able to produce nuclear-explosive material and build bombs in facilities that are not declared to the IAEA and inspected by IAEA inspectors.  The language of the NPT, its negotiating history, and the subsequent agreement applying its safeguards provisions all support the conclusion that non-nuclear-weapon NPT parties agreed to permit inspection of activities.

In recent years, world attention has been drawn to the acquisition by developing countries of delivery systems for nuclear weapons as distinct from the nuclear warheads themselves. In particular, concerns have been raised about the spread of ballistic-missile systems and technologies to areas such as theMiddle East, in which there are strong regional tensions.  The extensive use of ballistic missiles in the "war of the cities" in 1988 during the Iran-Iraq War and the use of Scud missiles by Iraq against Israel and Saudi Arabia during Desert Storm highlighted the rapid proliferation of these weapons, and served as a premonition of worse things to come if and when developing states deploy ballistic missiles armed with weapons of mass destruction.  The ballistic missiles of concern have ranges of a hundred to a few thousand kilometers (km) and can carry payloads of up to one or two thousand kilograms (kg). These systems are becoming increasingly prominent in Third World arsenals, and are perceived as threatening stability and regional military balances.

This study examines the impact of ballistic-missile proliferation, focusing on sixteen regional states which have or soon could have ballistic-missile capabilities.  Specifically, the study: (1) evaluates the military effectlveness of ballistic missiles in comparison with advanced strike aircraft, (2) identifies trends in the supply of and demand for ballistic missiles, (3) identifies key technologies and systems whose control is essential to a successful missile non-proliferation regime, (4) reviews the relevancy and effectiveness of present control mechanisms including the MlssiIe Technology Control Regime (MTCR), and (5) offers policy options for strengthening controls on the acquisition by developing states of longer-range ground strike delivery systems, including ballistic missiles and advanced combat aircraft.