New Books in Diplomatic History

Taking Territory: The Persistence of Conquest Since 1945 (Cornell University Press, 2026) is an eye-opening account of why territorial conquest persists today.

The end of World War II seemingly brought about a decline in territorial
conquest. Many have argued that a strong territorial integrity norm in
the postwar era explains this decline. Yet as Dan Altman shows, states
have seized territory numerous times since 1945. Large-scale conquests
have waned, but small, targeted seizures have persisted. The
relationship between conquest and war has also shifted. While states
attempting conquest before 1945 often initiated war and sought to occupy
large territories, challengers today more often seize small regions and
try to avoid war. This strategy, the fait accompli, has become the
predominant mode of conquest.

Drawing on his original data, which
include 175 conquest attempts between 1918 and 2024, Altman explains
why conquest persists, what motivates it, when it turns violent, and
when it succeeds. He shows how miscalculated fait accompli have sparked
many post-1945 wars, and why the motives behind many territorial grabs
are often about image, domestic politics, and the ambitions of military
officers. Incisive and illuminating, Taking Territory cuts against what we think we know about post-1945 conquest to reveal its true causes and consequences.

Our guest is Dan Altman, an Associate Professor of Political Science at Georgia State University.

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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To celebrate our nation’s 250th anniversary, Madison’s Notes is having a special Fourth of July episode to close out the season. So in Episode 12 of Season 5, I have as our guest Walter Russell Mead to talk about American grand strategy since the Declaration of Independence.

A Yale graduate, Mr. Mead is a professor at the University of Florida’s Hamilton School and a fellow at the Hudson Institute, a Foreign Affairs contributor and a Wall Street Journal columnist, as well as the host of the podcast, “What Really Matters.”

Drawing on his book, Special Providence (2001), we discuss the history of the four American schools of foreign policy—the Hamiltonians, Jeffersonians, Jacksonians, and Wilsonians—and how his analysis of the American traditions has held up nearly a quarter of a century later.

Hosted by Ryan Shinkel, Madison’s Notes is the podcast of Princeton University’s James Madison Program in American Ideals and Institutions. The transcript for this interview is available on the JMP substack page, “Madison’s Footnotes.”
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How should executives position a company for growth when the geopolitical future is so uncertain? Recent events in Ukraine and the Middle East and tightening restrictions on international trade and investment are reshaping the global business environment. History shows that any such era of change presents both challenges and opportunities. The authors of ⁠Geostrategy by Design: How to Manage Geopolitical Risk in the New Era of Globalization⁠ (Disruption Books, 2024) use  examples, from historical global turning points to recent political disruptions, to illustrate how geostrategy is essential to surviving and succeeding in the next era of globalization.
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As the First World War came to a chaotic end, Europeans feared that a wave of crime and anarchy would sweep across their continent. The upheavals of the war and of the subsequent violent breakup of the Habsburg, German, and Ottoman empires magnified longstanding fears that an increasingly interconnected world offered the enterprising and unscrupulous new opportunities to break the law and evade capture. New kinds of international criminals and criminal enterprises demanded novel forms of international cooperation. Thus was born the International Criminal Police Commission, known today as Interpol. In the 1920s and 1930s, Interpol's police officials and the lawyers who collaborated with them created lasting programs to combat counterfeiting, sex and drug trafficking, terrorism, and human smuggling, and other forms of international crime, which they labelled "a scourge of humanity."

Drawing on press reports, police files, and criminal records in numerous languages and across multiple countries, in A Scourge of Humanity: The Origins of Interpol and the End of Empire in Central and Eastern Europe (Oxford University Press, 2025), Dr. David Petruccelli explores the origins of Interpol and the role Central and Eastern European actors played in developing criminal policing and law during the interwar period to bring stability to their region and reshape international institutions and norms. He shows how legal experts replaced a liberal focus on individual rights with an emphasis on a collective of international societies and of police officers who looked to the international sphere as a space for eluding the constraints of the rule of law at home. In doing so, their initiatives posed an alternative to the imperial and liberal internationalist programs pursued by many Western Europeans and Americans and laid the groundwork for more radical forms of persecution during the Second World War.

While bringing to life the stories of individuals involved in shady activities across borders, A Scourge of Humanity explores the vigorous policing and harsh criminal laws established by Interpol to combat their crimes and highlights illiberal forms of internationalism that have left a lasting mark on our world.

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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In 1806, when Meriwether Lewis and William Clark return from their
journey—having led the Corps of Discovery across eight thousand miles of rapids, mountains, forests, and ravines—they bring an incredible tale starring themselves as courageous explorers, skilled survivalists, underrated scientists, and peaceful ambassadors. While there is truth in those descriptions, there is also distortion.

From one of the most exciting new historians to emerge in the past decade, This Vast Enterprise: A New History of Lewis & Clark (Simon & Schuster, 2026) offers a novel take on the expedition: a gripping narrative that draws on lost documents, stunning analysis, and Native perspectives. Craig Fehrman spent five years visiting more than thirty archives, interviewing more than a hundred sources, and collecting oral history passed down over centuries. He came to see that the success of Lewis and Clark depended on much more than just Lewis and Clark. We all know Sacajawea, and some of us know York, the Black man Clark enslaved. But here we meet John Ordway, a working-class soldier who fought grizzlies and towed the captains’ hulking barge. We hear from Wolf Calf, a Blackfoot teenager
who watched his friend die in a battle with Lewis and his men.

Each chapter moves to a different person’s point of view, describing
their desires and contradictions. We see Thomas Jefferson operating in an age of bitter partisan unrest—his secret political maneuvers to fund the expedition, revealed here for the first time, are a case study in presidential power. We witness the strategy and strength of Black
Buffalo, completely upending our understanding of Lakota-American
diplomacy. York, in his chapters, finds ways to wield power and make
choices in an era that didn’t allow him much of either. Clark is not a
folksy Kentuckian but a student of the Enlightenment. (Fehrman
discovered his college notebook; no previous biographer even realized that he went to college.) Lewis is someone willing to sacrifice everything for his country and his mentor, Jefferson.

In the end, the captains are men who needed help—from Sacajawea, from the Corps, and from each other. Mile after mile, the expedition pushes on through hailstorms and flash floods, frostbite and infections, rattlesnakes and rabid wolves, with the Spanish cavalry in fierce pursuit. Fehrman balances the story’s adventure with the humanity of its protagonists. The result is a thrilling reminder that even the most familiar moments in history can still surprise us.

Craig Fehrman is a journalist and historian. He lives in Indiana with his wife and children.

Raymond Williams, PhD is a political scientist, blogger, and book
club administrator with an interest in American History and Politics.
You can find Raymond on Instagram, Threads, and Twitter at @rtwilliams16
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