New Books in National Security

In Retrench, Defend, Compete: Securing America's Future Against a Rising China (Cornell UP, 2025), Charles L. Glaser advances a thought-provoking strategy for securing vital US interests in the face of China's rise.

Many believe China's ascent will drive it to war with the United States. Yet this is far from inevitable; geography and nuclear weapons should ensure US security. The real danger, Glaser contends, lies in East Asia's territorial disputes, especially over Taiwan. To reduce the risk of war, Glaser makes a bold case for ending US security commitments to Taiwan and carefully calibrating its policies on protecting South China Sea maritime features. The United States should also strengthen its alliances with Japan and South Korea and eliminate unnecessarily provocative nuclear and conventional weapons policies. These measures, Glaser argues, would defuse China's biggest security concerns while preserving America's core strategic interests.

Fusing theoretical insights with policy analysis, Retrench, Defend, Compete lays out a distinctive and compelling approach for managing the world's most consequential geopolitical rivalry—before it's too late.

Our guest is Professor Charles Glaser, who is a Senior Fellow in the MIT Security Studies Program. His research focuses on international relations theory and international security policy, including U.S. policy toward China, nuclear weapons policy, and U.S. energy security.

Our host is Eleonora Mattiacci, an Associate Professor of Political Science at Amherst College. She is the author of "Volatile States in International Politics" (Oxford University Press, 2023).
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The field of Strategic Studies, which studies the use and threat of force for political purposes, has seen the repeated rise of concepts to dominate discourses and research agendas, only to eventually fall to the margins again. What explains this cyclical pattern? What are the consequences for our understanding of war?Reconceptualizing War: The Rise and Fall of Fashionable Concepts in Strategic Studies (Oxford UP, 2026) by Dr. Chiara Libiseller examines these questions by likening the coming and going of theories to fashions. While in vogue, fashionable concepts are used widely, becoming broader and vaguer until essentially stripped of meaning. At the same time, they are bestowed with authority and power that allows them to withstand criticism and marginalizes alternative perspectives. These characteristics severely affect the quality, depth, and diversity of research by narrowing and siloing the field of inquiry.Tracing three concepts—revolution in military affairs, counterinsurgency, and hybrid warfare—through their fashion lifecycle, Dr. Libiseller demonstrates how fashionability affects the concepts themselves, related research, and the field more generally. Embedded within a discussion of the history and dynamics of Strategic Studies, the book calls for more reflexivity in the study of war and strategy.

This interview was conducted by Dr. Miranda Melcher whose book focuses on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars. You can find Miranda’s interviews on New Books with Miranda Melcher, wherever you get your podcasts.
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From a renowned Yale historian comes a chilling look at the looming threat of the next Great Power war and the urgent interventions necessary to avoid it in the twenty-first century.The vast majority of people alive today have come of age in a world of remarkable stability, presided over by either one or two Superpowers. This is not to say the world has been peaceful; but it has, to a great extent, been predictable. As an increasing number of Great Powers jostle for regional supremacy, as well as competitive advantage in nuclear technology, artificial intelligence, space exploration, and trade, our world has become more fragile, unpredictable—and combustible. The outbreak of global war among today’s Great Powers seems increasingly likely. Such war, as Odd Arne Westad powerfully argues in this urgent book The Coming Storm: Power, Conflict, and Warnings from History (Henry Holt and Co, 2026), would be of a magnitude and devastation never before seen.To understand the threats that face us in this complex new terrain, we must look to the lessons of the past, and especially the late nineteenth and early twentieth century—a time when Great Powers clashed and sought regional dominance, nationalism and populism were on the rise, and many felt that globalization had failed them; a time when tariffs increased, immigration and terrorism were among the biggest issues of the day, and a growing number of people blamed the citizens of other countries for their problems. A time, in other words, that carries eerie parallels with our own.
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Based on a decade of research and writing, enriched by eyewitness interviews and revealing documents obtained through dozens of freedom of information requests, Kennedy’s Coup vividly recreates the Kennedy Administration’s secret encouragement of the fatal 1963 military coup against South Vietnam’s president Ngo Dinh Diem.The brutal assassination of Diem by his own generals—which capped weeks of bitter White House infighting—led to dreadful consequences for the United States, opening the door to nine years of costly and futile warfare in Vietnam. Jack Cheevers provides unforgettable portraits of the people behind this fascinating drama: the kindly, philosophy-loving American ambassador who tried to save Diem; the powerful Pentagon and State Department figures who battled for JFK’s ear; the hard-driving young American journalists in Saigon who braved police beatings and death threats to dig out the story; the adder-tongued Madame Nhu, Diem’s beautiful sister-in-law, who enraged critics with outrageous insults; the scheming South Vietnamese generals who slowly tightened a noose around their commander in chief; the hard-drinking CIA agent who carried secret US messages to the generals; and Diem and his Machiavellian brother Nhu, head of the feared secret police, who tried but failed to outwit both the Americans and their traitorous generals.While many Vietnam books mention Diem’s murder in passing, this gripping account delves into the participants’ personalities, motives, and actions in greater detail than ever before. The definitive history of one of the most catastrophic decisions ever made by a US president, shedding new light on events that altered the world, Kennedy’s Coup will be a work of lasting importance.

Luca Trenta is an Associate Professor in International Relations at Swansea University, in Wales (UK).
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Stephen Sims’ New Atlantis essay examines how emerging technologies are reshaping the structure and authority of the modern nation-state. He argues that innovations such as artificial intelligence, drones, and networked warfare are weakening the traditional link between territorial control and the projection of power, enabling smaller actors to operate with unprecedented reach. At the same time, advanced states are enhancing their internal capabilities through data-driven governance and automation, increasing their ability to monitor and manage populations. This dynamic creates a paradox in which states grow more powerful domestically while becoming more vulnerable externally. Sims contends that sovereignty is fragmenting, with authority dispersing both to non-state actors and to transnational technological systems. The result is not the end of the nation-state, but its evolution into a more contested, uneven, and technologically mediated form.

Stephen Sims is associate professor of political science at the Rochester Institute of Technology.

Greg is the Executive Director and Founder of the World War II Discussion Forum (wwiidf.org). He also has a strong interest in literature, culture, religion, science and philosophy (translation: he's an eclectic reader who is constantly missing deadlines for book reviews).
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