NATO is a unique alliance in world history, outlasting its original purpose of deterring the Soviet Union and, in so doing, demonstrating the persistence of the shared values and interests among its members. Donald Trump is a unique president, rejecting past practice, procedures and principles. The interaction between NATO and this president in just a few months has upended decades-old assumptions about the transatlantic alliance and the presidency.
Robert Jervis once claimed that “states sometimes fail to deploy threats that would benefit them and on other, probably more numerous, occasions employ threats that provoke rather than deter.” If so, the field of international politics has done a remarkably poor job of accounting for the latter types of threat. For one, provocation has remained an elusive term.
The study of military effectiveness in political science has come a long way in a short period of time. When I started graduate school in the mid-1990s, most of the key works on the subject were written by historians and sociologists rather than political scientists. Beginning in the late 1990s, however, military effectiveness began to enter the mainstream of international security studies in political science. Scholars began to produce a series of works that detailed, inter alia, the martial shortcomings of dictatorships and Arab states, the battlefield virtues of democracies, the critical importance of the ‘modern system’ of force employment, and the link between civil-military relations and effective preparation for and conduct of hostilities. Lively debate continues on many of these subjects, particularly the relative effectiveness of different regime types and how civil-military relations influence adoption of the modern system. This debate has unfolded primarily in the context of conventional (interstate) war, but a related literature on effectiveness in counterinsurgency has been reinvigorated in the wake of U.S. occupations in Afghanistan and Iraq.
Scholars have long studied the causes of World War One. More recently, they have focused on events and processes which occurred after the outbreak of hostilities, including military intervention, war fighting strategies, and especially the war’s duration. In particular, research has explored why the Central Powers and the Entente were unable to reach a peace agreement before autumn 1918 given the obvious stalemate on the Western Front after the failure of the Schlieffen Plan in 1914. Alexander Lanoszka and Michel Hunzeker provide the latest entry into this line of enquiry, arguing that British concerns about national honor made a negotiated peace impossible and extended the war until Germany’s ultimate collapse in November 1918.
In “Alliance Coercion and Nuclear Restraint,” Gene Gerzhoy offers a novel theory of how alliances can prevent nuclear proliferation. Contrary to the conventional wisdom, which holds that alliances prevent proliferation by reassuring the client state and providing a substitute for an indigenous arsenal, Gerzhoy argues that clients in threatening security environments will nonetheless be interested in nuclear weapons since they can never have full confidence in their patrons’ present and future commitments. As a result, in order to prevent a client from going nuclear, the patron must employ threats of military abandonment, coupled with an assurance that its security commitment will be maintained (or increased) if the client complies and gives up its nuclear program. Whether these threats are successful, according to Gerzhoy, depends on the degree to which the client is militarily dependent on its patron. The article tests the theory with an in-depth examination of U.S. policy toward West Germany’s nuclear ambitions in the 1950s and 1960s. Consistent with the theory, Gerzhoy finds that West Germany was interested in nuclear weapons despite American protection, and that it only gave up these ambitions as a result of American coercion and assurances.
In this important study, which should be of interest to both scholars and policymakers, Paul Miller examines the practice of armed state building by both the United States and the United Nations. While acknowledging that there are some characteristics of armed state building by liberal powers that are similar to the theory and practice of traditional imperialism, Miller argues that there are important differences between the two concepts. In his definition, “Armed international liberal state building is the attempt by liberal states to use military, political, and economic power to compel weak, failed, or collapsed states to govern more effectively and accountably, as understood by Westphalian and liberal norms”(7).
In his recent article “The Inscrutable Intentions of Great Powers,” Sebastian Rosato argues that it is far more difficult for states to signal their intentions than existing scholarship recognizes. He claims that the various signaling mechanisms proposed in the IR literature — both domestic-level characteristics and international-level behaviors — “at best…allow for marginal reductions in uncertainty” (51). Thus, Rosato supports the ‘offensive realist’ worldview that “great powers focus on the balance of power” and that “self-help is persistent, balancing is endless, the security dilemma is intractable…competition is the norm and cooperation is both rare and fleeting” (88).
How political leaders and their intelligence agencies assess the long-term intentions of their adversaries in international politics, how their assessments change in response to changes in the adversary’s capabilities or behavior, and the extent to which political leaders rely on their intelligence agencies are old questions in the study of international relations. The assessment of long-term intentions is an extraordinarily difficult task, and the development of generalizable theory about the process is equally difficult. Keren Yarhi-Milo’s recent book, Knowing the Adversary: Leaders, Intelligence, and Assessment of Intentions in International Relations, is an enormously valuable contribution to our understanding of these questions. Unlike many studies of intelligence, it is well-grounded in international relations theory, and it effectively builds upon theories of social psychology, cognitive science, and organizational theory. Yarhi-Milo distinguishes herself from many other theorists by emphasizing that the assessment processes of political leaders may differ from those of state intelligence organizations, but at the same time she integrates both within a single overarching theoretical framework. Yarhi-Milo tests her theoretical arguments against leading alternative interpretations in three sets of important and revealing historical cases: British assessments of Germany’s intentions from 1934-1939; and U.S. assessments of Soviet intentions during the years leading to the collapse of détente (1976-1980) and during the end of the Cold War (1985-1988). Yarhi-Milo’s in-depth comparative studies utilize historical archives, published documents, and, for the U.S.-Soviet cases, interviews with key participants.
Last year, Scott Sagan declared – on H-Diplo – that we are in the midst of a renaissance in nuclear studies, driven by first-rate work by younger scholars. Two qualities in particular mark this scholarship. First, many of these young scholars combine both methodological innovation and rigor while engaging new archival sources. Second, these scholars are unafraid to challenge long-held conventional wisdoms about the nuclear age. The three commentators to this forum – a roundtable on Andreas Wenger and Roland Popp (eds.), “Special Issue: The Origins of the Nuclear Nonproliferation Regime,” in The International History Review — are exemplars of these trends. Eliza Gheorghe has mined new sources to explore the previously unknown and fascinating history of Romania’s nuclear program, in the process generating important insights into nuclear dynamics between superpowers and smaller states. Nicholas Miller has identified the key moments in United States nuclear nonproliferation policy, helping us understand the motivations and tools driving these efforts. Jane Vayman has built upon recent historical research to model the causal dynamics behind the surprising superpower collusion to stem the spread of nuclear weapons. As their previous work and their reviews here reveal, all three are equally conversant in the most recent historical scholarship and the newest trends in international relations theory involving nuclear dynamics.
Since the turn of the millennium, International Relations has been experiencing a revival of realist scholarship. As Konstantinos Kostagiannis writes in his thought-provoking paper on the classical realist Hans J. Morgenthau, part of this revival is due to the establishment of “tragedy as an analytical category and [the discussion of] its contemporary relevance for modern normative international-relations theory” (513). And Kostagiannis makes a significant contribution in further unearthing the prospects of tragedy by interpreting it as a metaphor, used by Morgenthau in his critique of the nation-state.