The nuclear nonproliferation regime was challenged in 1998 by nuclear-weapon tests in India and Pakistan, by medium-range missile tests in those countries and in Iran and North Korea, by Iraq's defiance of UN Security Council resolutions requiring it to complete its disclosure of efforts to acquire weapons of mass destruction, and by the combination of "loose nukes" and economic collapse in Russia. Additional threats to the regime's vitality came in 1999 from the erosion of American relations with both China and Russia that resulted from NATO's 1999 bombing of Yugoslavia--with additional harm to relations with China resulting from U.S. accusations of Chinese nuclear espionage and Taiwan's announcement that it was a state separate from China despite its earlier acceptance of a U.S.-Chinese "one China" agreement. Major threats to the regime also came from the continued stalemate on arms-control treaties in the Russian Duma and the U.S. Senate, from a change in U.S. policy to favor building a national defense against missile attack, and from a Russian decision to develop a new generation of small tactical nuclear weapons for defense against conventional attack.

This paper will discuss the effect some of these developments had on the 1999 Preparatory Committee (PrepCom) meeting of Non-Proliferation Treaty (NPT) parties to prepare for review of the NPT in 2000, and speculate about their likely future effect on the regime.

Can the current global moratorium on nuclear weapon testing survive the May 1998 tests by India and Pakistan and the refusal of US Senate leaders to permit consideration of the Comprehensive Test Ban treaty (CTBT) by the Senate? If nuclear testing resumes by India or Pakistan - or by Britain, China, France, Russia, or the United States - will it be condemned by most of the world as if an international norm against testing was already in effect? What will be the likely consequences for nonproliferation if tests resume? This article seeks to show that there are norms operating against nuclear testing even though the CTBT has not been ratified, and that renewal of testing would have widespread consequences.

This report reviews Chinese participation in the international negotiations for a Comprehensive Nuclear Test Ban Treaty (CTBT) at the Conference on Disarmament (CD) in Geneva and provides background for China’s decision-making procedures during the negotiations.

The CTBT negotiations marked the first important international negotiations for a multilateral disarmament treaty in which China participated from beginning to end. They were the first important international negotiations in which China, as a nuclear power, had great influence. The Chinese delegation to the CD assumed a serious and responsible attitude during the entire course of the negotiations. In part to increase international confidence that it would sign the CTBT by 1996 as scheduled and in part to indicate its intent to adapt itself to the world trend toward increased international cooperation and nuclear arms reduction, China announced during the latter stage of the negotiations that it would suspend nuclear testing.

As an example of successful multilateral negotiations, the conclusion and signing of the treaty, although long postponed, is an important achievement in arms control. As the sole declared nuclear-weapon state of the Third World at that time and the last among the five nuclear-weapon states (P5) to cease nuclear testing, China’s stance toward the CTBT negotiations was the object of world attention and concern. The population of China accounts for nearly one-quarter of the world’s total; China’s positive position on the CTBT and its contributions toward this end has a major worldwide impact now and in the future.

Prior to the commencement of the CTBT negotiations in Geneva, China declared on October 5, 1993, that while supporting an early conclusion of the treaty it would “take an active part in the negotiating process and work together with other countries to conclude this treaty no later than 1996.” China kept its promise.

China pursued a fair, reasonable, and verifiable treaty with universal adherence and unlimited duration. During the negotiations, China presented many working papers, non-papers, and suggestions regarding the CTBT draft text (including a number of revisions), and dealt with a series of critical issues in the Preamble, Basic Obligations, Organization, Verification, and Entry into Force sections of the treaty. The Chinese delegation played an active role at the conference table, and contributed positively to the weekly P5 consultations that ran in parallel with the CTBT talks.

China adhered toughly to its positions on two issues in the latter stage of the CTBT negotiations. One concerned potential abuses of the on-site inspection procedures. The other was that all nuclear-test-capable states (assumed to be the P5, India, Israel, and Pakistan) must accede to the treaty in order for it to enter into full legal force. Although China was not entirely satisfied with the final draft CTBT, it accepted the treaty. It agreed to sign the CTBT in the belief that the treaty text represented the best achievable result of the negotiations of the preceding two and a half years, reflected by and large the state of the negotiations, and was in general balanced.

Signing the CTBT was in line with China’s consistent stand in support of “the complete prohibition and thorough destruction of nuclear weapons.” This was one of the major reasons China supported an early conclusion of the treaty. Of course, China’s desire to meet the trend of the modern world also motivated it to sign. Because economic development had long been Beijing’s top priority, China needed a peaceful security environment in order to devote itself completely to the modernization of the nation. To this end, its defense buildup had been steadily subordinated to national economic development. Beijing’s decision on the CTBT negotiations stemmed also from its self-defense and no-first-use nuclear policies. China had established an effective nuclear force for self-defense.

China is now making preparations for the treaty to enter into force. After the conclusion of the CTBT, China will continue efforts in pursuit of world peace, development, and cooperation. Meanwhile, China will continuously ensure the safety and reliability of its nuclear weapons without nuclear testing.

In the 1990s, global concern over illicit trafficking in nuclear material to terrorists and nation-states has intensified. Two major changes are responsible: the evident new intent of terrorists to wound or kill thousands of civilians and the availability of inadequately protected "loose" nuclear materials in Russia and the newly independent former Soviet republics. These changes have made more likely attempts to acquire weapons-usable nuclear materials for terrorist use or for sale to state sponsors of terrorism. As a result, many efforts are being made to strengthen national and international standards for protection of nuclear material from theft and sabotage. One problem with current efforts is that national stnadards now vary widely. Although the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) mandates that non-nuclear weapon parties accept the safeguards requirements of the International Atomic Energy Agency (IAEA) for their nuclear activities, the relevant international standards for physical protection are mostly advisory.

This report on non-binding, non-treaty approaches to arms control draws upon research and discussion at the Center for International Security and Arms Control during 1990 and 1991, after the Cold War had ended but before the disintegration of the Soviet Union. It was apparent at the time that the traditional approach to arms control--through detailed treaties resulting from long negotiations--might not be adequate to deal with the new situation in which arms reductions could be made quickly but coordination would still be needed in order to preserve stability. We examined the possibility of using reciprocal unilateral measures (RUMs) in place of treaties as a mechanism for achieving arms control.

A striking example of the approach we were recommending was when Presidents Bush and Gorbachev announced major withdrawals of non-strategic nuclear weapons in September and October 1991 (We describe the Bush-Gorbachev RUMs in this paper.) The strategic picture changed dramatically soon after those measures were announced. The Soviet Union was replaced by the Russian Federation and 14 other newly independent states. For several years, the treaty method worked well in U.S.-Russian arms control, alongside other forms of cooperation such as the Nunn-Lugar program. We put aside our work on RUMs.

Although we are far from a resumption of the Cold War, U.S.-Russian relations are no longer as cooperative as they were in the early 1990s. Besides, the treaty method has slowed almost to a standstill. We have therefore returned to the draft final report of 1991 and drawn from it the history we thought is relevant to the current problem of reducing the strategic nuclear threat Russia and the United States pose to each other--and to the rest of the world.

There is a growing logjam of arms control treaties waiting for approval in both the Russian State Duma and the U.S. Senate. Without decisive action, this logjam will probably prevent approval by the world's two largest military powers of the Strategic Arms Reduction Treaty (START II) of 1993, the Comprehensive Test Ban Treaty of 1996 (CTBT), amendments to the Anti-Ballistic Missile (ABM) Treaty, and the protocols of the Treaty of Pelindaba (creating an African nuclear-weapon-free zone (NWFZ)) and the Treaty of Rarotonga (creating a South Pacific NWFZ) before the end of the century. It will also prevent progress towards START III and further bilateral nuclear reductions.

Global concerns over illicit trafficking in nuclear materials intensified in the 1990s. Some
countermeasures were taken, including steps involving the IAEA. But greater international cooperation, and higher standards of physical protection, may be needed to guard against the chance that weapons-grade material might fall into the wrong hands. This viewpoint article — based on a presentation to the IAEA’s International Conference on Physical
Protection in November 1997 — advocates steps to raise global standards, and to have them monitored internationally.

Scott D. Sagan notes that the question of why states seek to build nuclear weapons has scarcely been examined, although it is crucial to efforts at preventing proliferation. He challenges the traditional realist assumption, accepted uncritically by many scholars and policymakers, that states seek to acquire or develop nuclear weapons primarily for military and strategic reasons. Sagan examines alternate explanations for the demand for nuclear weapons.

Revised and updated versions of this article also appear as "The Causes of Nuclear Proliferation," Current History (April 1997), pp. 151-156; as "Why Do States Build Nuclear Weapons?" in Victor Utgoff, ed., The Coming Crisis: Nuclear Proliferation, U.S. Interests, and World Order (MIT Press, 1999), p. 17-50; and as "Why Do States Build Nuclear Weapons? Three Models in Search of a Bomb," in New Global Dangers: Changing Dimensions of International Security (International Security Reader, July 2004).

This article analyses whether the Nuclear Non-Proliferation Treaty (NPT) provides legal authority for International Atomic Energy Agency (IAEA) efforts to gain more information and more intrusive inspections to assure that non-nuclear-weapons States (NNWS) have joined the NPT are not attempting to make nuclear weapons in violation of that Treaty.