Arms Control and Arms Race

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Arms Control and Arms Race





Arms control is a form of international security cooperation, or security regime, aimed at limiting, through tacit or explicit agreement, the qualities, quantity, or use of weapons. The term arms control has been used loosely to denote many things in international politics involving the reduction or elimination of weapons or the tensions that lead to their use, and even as a euphemism for militarily enforced disarmament, like that imposed on Iraq by the United Nations in the 1990s. But such phenomena often do not reflect the conventional meaning of the term as it is used by arms control scholars and practitioners: a meaning that implies a cooperative relationship involving reciprocity and mutually agreed restraints.

The three most important goals of arms control are (1) to lower the likelihood of war; (2) to reduce its destructive effects; and (3) to curtail the price of preparing for it. The first aim can be met by encouraging military postures that enhance deterrence and defense and thus make aggression less attractive; by reducing the instabilities of arms racing that may lead to war (see below); and by taking steps that make military accidents or unauthorized uses of force less liable to happen or to lead to war if they do. As for the goal of limiting damage when wars do break out, arms control measures may forbid the production, deployment, or use of certain military technologies. Finally, cost-savings can be garnered through quantitative or qualitative arms limitation agreements. Such economies are an important policy consideration, for resources not sunk into certain types of weapons can be used to promote security in other ways, or put toward other welfare-enhancing activities.

Regardless of how it mixes or prioritizes these objectives, arms control has a few essential interrelated characteristics. First, it is a political relationship between actors: Unilateral arms control is an oxymoron. This does not preclude unilateral steps toward disarmament or demobilization that one state may take in order to elicit reciprocity from others and thus launch an arms control process: The determining factor is the conception of an end-state involving mutual reductions, limitations, or other restraints. Second, arms control involves strategic interdependencethe parties engaged in it are sensitive to each others postures and actions, and their decisions to agree and comply with arms control depend on their beliefs about each others willingness to do likewise. Third, it involves at least tacit if not explicit bargaining because the incentives to cooperate that infuse the relationship are always mixed with some degree of conflict and incentives to compete.


It is useful to distinguish between rivalry-specific and general arms control measures. In the rivalry-specific form, adversaries seek to manage their security competition through agreements that are tailored to the shape of their strategic relationship, in order to make a more stable or at least less costly military balance. By contrast, general arms control measures aspire to universality: With a broad ambit and generic guidelines, they are meant to exert desired effects over the multitude of strategic relationships in international politics.

The 1922 Washington Naval Treaty, for example, was rivalry specific. In it, the United States, Britain, and Japan agreed to reductions in battleship fleets according to specific ratios of strength between them, and to a ten-year hiatus on new construction, as well as limitations on battleship tonnage and armaments. The goal was to stabilize the existing balance of naval forces at lower levels, and to forestall an arms race among the three parties. Similarly, in 1972, at the peak of cold war détente, the United States and the Soviet Union pledged in the first Strategic Arms Limitation Talks agreement (SALT I) to limit the number of ballistic nuclear missile launchers to then-current levels, and to abide by major limitations on the deployment of strategic missile defense systems. Behind these arrangements were mutually held cooperative and competitive goals: to slow down the arms race and reduce worrisome instabilities and to maximize restraints on the other side while minimizing those on ones own side.

As for general arms control measures, the most extensive early efforts were the conventions produced at the Hague Conferences of 1899 and 1907. Those widely endorsed conventions promulgated, among other things, prohibitions on the use of certain types of arms, such as dum-dum bullets, poisonous chemical weapons, or bombs dropped from balloons. In 1925, during the heyday of the League of Nations, the Geneva Protocol was added to the conventions, reinforcing the prohibition on the use of deadly gases. Later in the interwar period, participants in the World Disarmament Conference in Geneva (1932-1936) tried to enact a blanket prohibition on the use and development of offensive weapons, which were (and still are) thought to be conducive to war. The effort was ill fated for many reasons, but chief among them was the bane of many such qualitative exercisesthe thorny and politicized issue of distinguishing between offensive and defensive weaponry. At the Geneva conference, for example, Britain, France, and the United States argued that aircraft carriers were essentially defensive; conversely, Germany, Italy, the Soviet Union, and Japan asserted that they were inherently offensive because they were useful for launching surprise attacks. In the era of the United Nations, similar attempts to foster far-reaching agreements have been carried forward by groups of states in the General Assembly; the current locus of these efforts is the sixty-six-member Geneva Conference on Disarmament (CD). Begun in 1979, the CD has been the forum for adoption of the 1992 Chemical Weapons Convention and the 1996 Comprehensive Test-Ban Treaty, and for negotiating various additions to the 1975 Biological Weapons Convention.

The most recent general effort was the tightly focused 1997 Ottawa Landmines Convention, which prohibits the use, stockpiling, production, and transfer of antipersonnel mines and mandates the destruction of existing stocks. As a general measure with aspirations to universality, the treaty has had mixed success. As of 2007, 155 member states had joined, while 37 had not, including 3 permanent members of the United Nations Security Council: the United States, Russia, and China. However, although the United States has not signed the treaty, it has funded and supported demining efforts worldwide. Thus, even though many important countries have not signed the convention, it has had a tangible humanitarian impact. Demining efforts catalyzed by the convention have resulted in the removal of hundreds of thousands of mines, saving a large number of lives worldwide.

General and rivalry-specific characteristics of arms control can overlapfor example, when a rivalry-specific formula is nested within a more general arms control agreement. The most important and contentious arms control agreement of the early twenty-first centurythe Nuclear Nonproliferation Treaty (NPT)is a good illustration of this. The NPT, which first came into force in 1970, has a nearly universal membership (by 2007, 188 of the 192 members of the United Nations were signatories). Its general aims are to reduce and eventually eliminate the role of nuclear weapons in international politics. Behind these sweeping generalities are a variety of undertakings that apply specifically to two different classes of signatoriesthe Nuclear Weapons States (NWS) and the Non-Nuclear Weapons States (NNWS). The NWS parties legitimately possess nuclear weapons, but must work to reduce them (eventually to zero), and must not share them with states that do not possess nuclear weapons. The NNWS cannot legitimately possess nuclear weapons, but in return for foreswearing them, they are entitled to develop nuclear energy for peaceful purposes, and to international support for those efforts channeled through the International Atomic Energy Agency (IAEA). Thus, although the NPT is a nearly universal and general agreement, it is politically oriented toward managing a dangerous and difficult imbalance between the nuclear haves and have-nots. Similarly, the parties to the 1990 Conventional Forces in Europe (CFE) treaty were all members of either the NATO or Warsaw Pact alliances. Although a general aim of the treaty was to reduce conventional forces in Europe, its organizing principle was military balance between the two blocs. There was thus a strong rivalry-specific core within the broader general agreement.

Yet another form of arms control is the supplier-cartel regime, in which participants who share a leading position on a given weapons technology agree to restrict its transfer to other parties outside the cartel. A formula of this sort is wired into the NPT in that the NWS agree not to transfer nuclear weapons to NNWS. But the purest example is the Missile Technology Control Regime (MCTR), which enjoins parties possessing advanced ballistic missile capabilities not to export the technology to other states. Begun in 1987 by the United States and six of its closest allies (Britain, Canada, France, West Germany, Italy, and Japan), the MCTR cartel grew to thirty-three members, including Russia, and also attracted the unilateral adherence of a number of other key players, most notably China and India.


The most important general critique of arms control is that if states become or threaten to become aggressive, arms control is rendered irrelevant and even pernicious: It encourages false hopes, wastes political energies on panaceas, and, worst of all, lowers defenses that need rather to be raised. By the same token, critics contend, arms control is most readily achieved and likely to work when it is least neededthat is, when international politics are placid or when foes concur that the weapons in question lack utility. In the 1991 Strategic Arms Reduction Treaty (START I), struck after the cold war evaporated with the end of the Warsaw Pact and the withdrawal of Soviet forces in Eastern Europe, Washington and Moscow achieved stunning success in agreeing to 30 to 40 percent cuts in the number of deployed strategic nuclear weapons: Such cuts had been impossible in the hostile and distrustful atmosphere of earlier decades. Once the political bases for enmity are removed, arms control can seem easy.

In circumstances of rivalry, in which trust and confidence-building is most needed, solutions to the verification problem (of measuring compliance with arms control agreements) can prove elusive. Insistence on highly intrusive forms of verification, moreover, can mask a basic unwillingness to reach agreement and negotiations can become a charade: Here the goal is not to find common ground but merely to avoid taking the blame for the failure to do so. Assuming a workable verification mechanism can be agreed on, there remains, as Fred Iklé famously observed, the enforcement problemhow to punish the cheaters that are caught. There is nothing about an arms control treaty that can make sanctions automatic: Although effective verification may make it harder for cheaters to covertly break out of agreements, the basic political problem of when, where, and how to counter their threatening military power remains, and will be decided by the parties that are both willing and able to do something about it. Thus, although it is a form of international cooperation, arms control does not transcend power politics.

There is one more note of caution: Effective arms control agreements that do produce mutual verifiable cuts will expose new gaps and asymmetries in the balance of forces among potential rivals, and, as a result, may encourage them to channel new investments into otherand potentially more destabilizingweapons systems. This is most likely to occur when, despite major agreements, the embers of political competition continue to smolder. One of the important effects of the Washington Naval agreements was to facilitate the parties shift of focus and resources to competitive aircraft carrier developmentwith portentous consequences for the outbreak and conduct of World War II in the Pacific.

Proponents of arms control do not deny that these problems exist, but they point out that arms control is not always hostage to the vagaries of the political environmentit can shape that environment too. Arms control is more than just a means by which states press fixed national interests; it involves a political process that may permit them to learn more about each other, to deflate exaggerated images of the enemy, and to conceive of interests in more compatible ways. If it is folly to pursue arms control with irredeemably aggressive states, it is just as foolish not to pursue it when the situation is less clear-cut, for arms control itself may help not only to bring clarity but also to prevent potentially aggressive states from becoming aggressors.


An arms race occurs only when parties for whom war is a possibility engage in strategically interdependent increases in the quantity and/or quality of weapons: Their respective acquisitions and buildups are meant to match or overcome the strengths of the other side. The element of strategic interdependence is central to the identification of the arms race as a phenomenon of international politics, which requires states to rely ultimately on their own military forces for security, because the military forces of other states may threaten them and there is no world government to protect them. In such a milieu, where falling behind ones competitors can potentially lead to the gravest consequences, arms racing can be seen as a normal, survival-enhancing behavior.

Nevertheless, arms races are often considered harmful because they lead states that are trying to outpace each other to devote more resources to military preparations than would otherwise be necessary for their security. Increased military buildup, in turn, means that fewer resources can be devoted to other, welfare-enhancing activities. When the competitive dynamic of arms racing comes to dominate other principles for controlling acquisitions, the buildup (and concomitant waste) can mount precipitously. For example, during the most dramatic upswing of the cold war nuclear arms race, as the Soviet arsenal grew and American planners became ever more ambitious in their target selection, the U.S. nuclear warhead stockpile climbed from approximately 1,000 in 1955, to 18,000 in 1960, to 32,000 by 1967. It was very hard to understand why a much smaller (and cheaper) arsenal of warheads would not have been sufficient to achieve the main strategic purposes: deterring a Soviet nuclear strike on the United States, or a conventional assault on Western Europe.

The worst fears about arms races, however, are not that they are wasteful but that they can cause wars by feeding conflict-spirals that do not just reflect enmities, but create and reinforce them. In this view, arming itself may become the stuff over which states fight. The conflict-spiral premise is what makes many figurative uses of the term arms race inapt. It has, for example, been used to describe the spike in steroid use among the slugger-elite of professional baseball, and also the steady pace of miniaturization and computing-capacity innovation among microchip developers. But few would argue that the greatest danger of steroid use in baseball is that the supersized sluggers will eventually fall on each other in sudden bat-wielding melees, or that the technology race among microchip producers will lead to a cataclysmic collapse of the high-tech economy.

Two objections to the conflict-spiral conception of arms racing are often raised. The first and most intuitive is that arms races do not cause hostility but are its consequence. They reflect the maneuvering of rivals consciously seeking a margin of advantage that will permit aggression or deter it, not some unfortunate misunderstandingand that being the case, buildups may prevent war, because they reinforce mutual caution. Second, even if an arms race between status-quo-oriented states does sometimes culminate in war, their decisions to fight are based on concrete stakes and complex political judgments that simply cannot be reduced to reciprocal fears caused by the arms race itself.

Nevertheless, there is an impressive amount of research on the connection between arms races and war, most of which has tended to focus on a few key questions: Given that some arms races culminate in wars, whereas others do not, are certain types more conducive to war than others? Do the dynamics of qualitative races (in which competitors seek innovative capabilities that will render their rivals obsolete) differ from quantitative races (in which competitors seek a numerical advantage in relatively comparable weapons)? Samuel Huntingtons answer to these questions blended the two concerns by arguing that quantitative arms races are more dangerous than qualitative ones because, among other reasons, quantitative races require increasingly costly sacrifices that put pressure on states to seek a quick and violent escape from the competition. Others have suggested that arms races that generate large swings back and forth in relative strength (thus creating tempting opportunities for aggression by the temporary leader) are the most dangerous. Still others have made the intuitive point that arms races which give big advantages to states that favor the status quo are more likely to result in peace than those which give big advantages to states with aggressive intentions (although this ignores the possibility that a status-quo state may want to use its temporary margin of strength to defeat an aggressive adversary before it, in turn, becomes stronger).

During the cold war, these concerns were amplified by the fact that the arms race in question was nuclear: If it had led to war, it would truly have been a race to oblivion. The survival of human lifelet alone civilizationfollowing a major nuclear exchange between the cold war rivals would be questionable. Furthermore, it was clear that unless effective arms control measures were taken to interrupt the competitive dynamic, the superpowers nuclear race would metastasize, creeping into other rivalries throughout the international system. Even if arms racing increased the likelihood of war only by small margins, as the number of nuclear racers multiplied so too would the prospects for nuclear holocaust. Concerns such as these provided the impetus behind the rivalry-specific and general nuclear arms-control efforts discussed above, and while the politics of the NPT remain contentious, and a number of crucial nuclear-weapons states are not members (Israel, India, Pakistan, and North Korea), the NPT does appear to have helped stem the contagion of nuclear arms and arms races among states.

As the cold war recedes, and with it the chilling imagery of a nuclear-arms-race-spiral, the concept of an arms race remains useful. It has striking relevance to an important issue of international security today: the militarization of outer space. From the 1960s to the 1980s, the Soviet Union and the United States experimented with weapons designed to destroy earth-orbiting satellites, which have tremendous civilian and military utility. The feared arms race in such weapons did not then materialize, and the end of the cold war put the issue on ice. In 2007, however, China surprised the world by testing an antisatellite weapon, challenging the presumption of the United States military preeminence in space. Thus, the prospect of a space arms race was resurrected, and the question of whether such a race could become so intense as to raise the probability of war was reopenedalong with the question of whether arms control could serve to prevent war.

Still, in the early twenty-first century concerns over the arms-race-spiral as a potential cause of nuclear war seemed to decline relative to fears of another nuclear nightmare scenariothat of loose nukes getting into the hands of terrorists. This perceived and perhaps real shift in nuclear risk raises important questions about the future agenda of arms control concerning nuclear weapons and other weapons of mass destruction: Can the existing nonproliferation regimeswith some clever rewiringfurnish satisfactory solutions? Or must a new matrix of rivalry-specific, general, and supplier-cartel agreements be contrived to manage risky relationships between states and nonstate actors? And if the latter is necessary, will the supportive international political context on which arms control depends take shape and be maintained? For common danger does not make security cooperation inevitable. Without a countervailing common will, a construct entirely contingent on politics, the states that oppose this danger will make a rabble, not a regime.

SEE ALSO Cold War; Deterrence, Mutual; Gorbachev, Mikhail; Huntington, Samuel P.; League of Nations; Militarism; National Security; Politics; Reagan, Ronald; Terrorism; Union of Soviet Socialist Republics; United Nations; Weaponry, Nuclear; Weapons Industry; Weapons of Mass Destruction


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Timothy W. Crawford