Forty years ago, Schengen - a wine-making village at the tripoint border of Luxembourg, France, and Germany - made European history when diplomats from these countries, Belgium, and the Netherlands struck a deal to scale back their mutual border checks.

"The event at Schengen went unnoticed by much of the European press," writes Isaac Stanley-Becker in Europe Without Borders: A History (Princeton University Press, 2025). Yet, as one of its signatories said much later, the Schengen agreement "changed everything" - accelerating the development of the European single market and currency area.

Today, however, Schengen is under threat as its now-29 members struggle to balance the free movement of people against the demands of cross-border policing, immigration control, and political consent. In September 2024, the German government - rattled by surging support for the nativist AFD in the run-up to a federal election - reinstated border controls with its four Schengen founders, prompting threats of retaliation. Could Schengen face, as Stanley-Becker warns, "death by a thousand cuts"?

Isaac Stanley-Becker is an investigative reporter at the Washington Post - part of the team that won a Pulitzer Prize in 2024 for a series exploring the role of the AR-15 semi-automatic rifle in American life. A graduate of Yale, he went on to complete a PhD in History at Oxford in 2019. Europe Without Borders is his first book.

*The author's book recommendations were East West Street: On The Origins of Genocide and Crimes Against Humanity by Philippe Sands (Weidenfeld & Nicolson, 2016) and The Man Who Saw Everything by Deborah Levy (Hamish Hamilton, 2019).

Tim Gwynn Jones is an economic and political risk analyst at Medley Advisors, who also writes and podcasts on Substack at 242.news.

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