Recent Publications

Parameters | Summer 2025
June 18, 2025 — Welcome to the Summer 2025 issue of Parameters. This issue consists of an In Focus special commentary, three forums (Indo-Pacific Challenges, Russia-Ukraine Issues, and Historical Studies)... MORE

The Economic Argument for Keeping US Forces in Europe
August 15, 2025 — NATO’s Hague summit earlier this summer has generally been viewed as a qualified success, despite — or perhaps because of — its unusually short and focused agenda. The new 5 percent defense spending commitment deserves most of the credit for this perception, but there’s no escaping the conclusion that the lack of major disruptions also explains why... MORE

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Academic Year 2025–26 Annual Estimate of the Strategic Security Environment
July 9, 2025 — The United States faces a complex and ever-changing global environment. The Annual Estimate of the Strategic Security Environment is designed to guide the collective defense community to research and write about critical national security challenges to help the Army prepare for a wide range of potential conflicts and threats... MORE

Slide for the Academic Year 2025–26 Annual Estimate of the Strategic Security Environment

Book Review: Provoked: How Washington Started the New Cold War with Russia and the Catastrophe in Ukraine
July 1, 2025 — Billed by the reviewer as “must-read for military professionals who want to understand how the United States and Russia came to the precipice of war,” this book posits that the Washington bipartisan foreign policy consensus is to blame for the Russia-Ukraine War. Using US diplomats, bureaucrats, defense contractors, and politicians to make his point, Horton uses their work to argue for restraint when dealing with Russia. ... MORE

Cover for Provoked: How Washington Started the New Cold War with Russia and the Catastrophe in Ukraine

Book Review: The War for Ukraine: Strategy and Adaptation Under Fire
July 1, 2025 — Mick Ryan’s book The War for Ukraine: Strategy and Adaptation Under Fire examines Russia’s and Ukraine’s strategies and, and Ukraine’s NATO supporters, “exploring how the Russians and Ukrainians adapted during the war—on the battlefield and institutionally.” The book has two parts. Part one explores strategy. Part two discusses adaptation in the Russia-Ukraine War and includes points about adaptation for future wars. The reviewer sees it as a must-read saying, “The War for Ukraine is essential reading for civilian and military national security professionals. The strength of the book is Ryan’s unique blend of experience, education, and access.” ... MORE

Cover for The War for Ukraine: Strategy and Adaptation Under Fire

Russia, Ukraine, and Collective Defence
April 21, 2025 — The ability to adapt to a constantly evolving security environment has been critical to the success of NATO, yet this is being tested anew as the Alliance faces a second term of Donald Trump in the White House and re-embraces collective defence in light of Russia’s war on Ukraine. Despite notable solidarity and unity in the immediate aftermath of... MORE

Russia, Ukraine, and Collective Defence | Dr. John R. Deni & Anca Agachi

Does NATO Still Matter?
April 21, 2025 — The alliance has created economic growth, peace and stability. America’s relationship with Europe is undergoing a potentially profound reexamination. Whether and how the transatlantic bond — especially America’s commitment to NATO — will endure has become an open question.To some degree, reassessment makes sense. The NATO agreement was penned over... MORE

Does NATO still matter? | Dr. John R. Deni

Don’t waste this crisis, Europe: consolidate your defense industry
April 15, 2025 — Turn your excess national defense champions into continental ones.Russia’s ongoing war in Ukraine and questions about the American commitment to NATO have cast a spotlight on European efforts to safeguard security on the continent. But today, the major hurdles confronting Europe are no longer defense spending and industrial capacity. At both the... MORE

Don’t waste this crisis, Europe: consolidate your defense industry | Dr. John R. Deni

A Drawdown of US Forces in Europe Is All but Certain
April 15, 2025 — Here’s how the Pentagon can rebalance its approach to the continent without sacrificing US interests.The Trump administration has only just begun to fill its ranks with the political appointees who will flesh out the future of US defense policy. One item sure to be on their agenda is a review of US military deployments around the world, known in... MORE

A Drawdown of U.S. Forces in Europe Is All but Certain | John R. Deni

Parameters | Spring 2025
March 20, 2025 — Welcome to the Spring 2025 issue of Parameters. This issue consists of an In Focus special commentary, three forums (Russia, Ukraine, and NATO; Strategic Competition and Managing National Security; and Joint Sustainment Strategies), the regular Civil-Military Relations Corner installment, and a review essay... MORE

It’s (Still) More Expensive to Rotate Military Forces Overseas than Base Them There
December 19, 2024 — In mid-2020, then-President Donald Trump ordered the Pentagon to withdraw roughly one-third of US forces from Germany, reportedly because of policy differences with Berlin. Given how long it would take to implement such a significant change in overseas posture, the clock ran out on his term before the Department of Defense could complete it. With... MORE

It’s (still) more expensive to rotate military forces overseas than base them there | By John R. Deni

Will Assad’s Defeat be Putin’s Waterloo?
December 10, 2024 — The narrative of Russia’s ascendancy in 2024 is beginning to look like more fiction than fact. The Assad regime in Syria has become a casualty of Moscow’s increasingly desperate efforts in Ukraine, and its collapse is a strategic and operational blow that undermines the narrative of Russia as ascendant, Kyiv as doomed, and Vladimir Putin as strategic mastermind. ... MORE

Will Assad’s defeat be Putin’s Waterloo? | John R. Deni