The Strategic Logic of Nuclear Proliferation

Nuno P. Monteiro and Alexandre Debs, both at Yale University

When do states acquire nuclear weapons? To address this question, a strategic theory of nuclear proliferation must take into account the security goals of all of the key actors: the potential proliferator, its adversaries, and, when present, its allies. To acquire nuclear weapons, a state must possess both the willingness and the opportunity to proliferate. Willingness requires the presence of a grave security threat against which no ally offers reliable protection. Opportunity requires that the state pursuing nuclear weapons possess high relative power vis-à-vis its adversaries or enjoy the protection of a powerful ally. Whereas a relatively weak state without a powerful ally lacks the opportunity to develop a nuclear capability, one with such an ally lacks the willingness to do so. Therefore, only powerful states or relatively weak states with allies that do not guarantee fulfillment of at least some of their key security goals will acquire the bomb. These claims are supported by the overall pattern of nuclear proliferation as well as detailed analyses of the Soviet, Iraqi, Pakistani, South Korean, and West German nuclear development cases.


Racing toward Tragedy? China's Rise, Military Competition in the Asia Pacific, and the Security Dilemma

Adam P. Liff, Indiana University, and G. John Ikenberry, Princeton University

In the post–Cold War period, scholars have considered the Asia Pacific to be ripe for military competition and conflict. Developments over the past decade have deepened these expectations. Across the region, rising military spending and efforts of various states to bolster their military capabilities appear to have created an increasingly volatile climate, along with potentially vicious cycles of mutual arming and rearming. In this context, claims that China's rapid economic growth and surging military spending are fomenting destabilizing arms races and security dilemmas are widespread. Such claims make for catchy headlines, yet they are rarely subject to rigorous empirical tests. Whether patterns of military competition in the Asia Pacific are in fact attributable to a security dilemma–based logic has important implications for international relations theory and foreign policy. The answer has direct consequences for how leaders can maximize the likelihood that peace and stability will prevail in this economically and strategically vital region. A systematic empirical test derived from influential theoretical scholarship on the security dilemma concept assesses the drivers of bilateral and multilateral frictions and military competition under way in the Asia Pacific. Security dilemma–driven competition appears to be an important contributor, yet the outcome is not structurally determined. Although this military competition could grow significantly in the near future, there are a number of available measures that could help to ameliorate or manage some of its worst aspects.


Why Factions Switch Sides in Civil Wars: Rivalry, Patronage, and Realignment in Sudan

Lee J.M. Seymour, University of Amsterdam

Side switching by armed groups is a prominent feature of many civil wars. Shifts in alignment have far-reaching consequences, influencing key outcomes such as civil war duration and termination, military effectiveness, levels of civilian victimization, and state-building prospects. In Sudan's wars, ideological and ethnic cleavages have not influenced factional alignments nearly as much as one might expect given the prominence of clashing political projects and ethnically organized violence in southern Sudan and Darfur. Recent explanations highlighting the role of territorial control, factional infighting, or relative power considerations also have limited value. In many wars fought in weak states characterized by low barriers to side switching, two mechanisms explain patterns of collaboration and defection: first, political rivalries that lead actors to collaborate in exchange for military support in localized struggles; and second, patronage-based incentives that induce collaboration for material gain. A nested analysis drawing on original data from wars in southern Sudan and Darfur supports this argument. The findings have implications for understanding alignments in civil wars, the role of weak states in counterinsurgency, and ethnic politics more generally, as well as policy relevance for factionalized civil wars.


Old Habits, New Consequences: Pakistan's Posture toward Afghanistan since 2001

Khalid Homayun Nadiri, Paul H. Nitze School of Advanced International Studies, Johns Hopkins University

Since September 11, 2001, Pakistan has pursued seemingly incongruous courses of action in Afghanistan. It has participated in the U.S. and international intervention in Afghanistan at the same time as it has permitted much of the Afghan Taliban's political leadership and many of its military commanders to visit or reside in Pakistani urban centers. This incongruence is all the more puzzling in light of the expansion of indiscriminate and costly violence directed against Islamabad by Pakistani groups affiliated with the Afghan Taliban. Pakistan's policy is the result not only of its enduring rivalry with India but also of historically rooted domestic imbalances and antagonistic relations with successive governments in Afghanistan. Three critical features of the Pakistani political system—the militarized nature of foreign policy making, ties between military institutions and Islamist networks, and the more recent rise of grassroots violence—have contributed to Pakistan's accommodation of the Afghan Taliban. Additionally, mutual suspicion surrounding the contentious Afghanistan-Pakistan border and Islamabad's long record of interference in Afghan politics have continued to divide Kabul and Islamabad, diminishing the prospect of cooperation between the two capitals. These determinants of Pakistan's foreign policy behavior reveal the prospects of and obstacles to resolving the numerous issues of contention that characterize the Afghanistan-Pakistan relationship today.


Pakistan's Forgotten Genocide—A Review Essay Sumit Ganguly, Indiana University

In The Blood Telegram: Nixon, Kissinger, and a Forgotten Genocide, Gary Bass convincingly argues that the Nixon administration did little to rein in its ally Pakistan from perpetuating genocide against its own population largely because of Islamabad's vital role in facilitating U.S. diplomatic contact with the People's Republic of China. He also shows how the low strategic significance of South Asia for much of the global community, combined with an inordinate regard for the norm of sovereignty, led to a lack of support for the principle of humanitarian intervention. The Blood Telegram partially affirms the proposition that acts of genocide can stem from the choices of a handful of individuals who are determined to achieve a political goal using all available means.

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