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John R. Deni, PhD

International Security Scholar, Leader, Educator, and Author

Latest Publications

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Why does the United States need European allies, and why is it getting more difficult for those allies to partner with Washington in standing up to China, pushing back against Russia, and pursuing other common interests around the world? This book addresses the economic, demographic, political, and military trends that are fundamentally upending the ability and willingness of European allies to work with Washington.


Ukrainian President Volodymyr Zelenskyy’s rather impolitic reaction to the news that his country would not receive a firm timetable for membership in NATO stole the show at the alliance’s summit in Vilnius. Receiving far less attention, but of arguably more  immediate importance is the mismatch between the alliance’s forces in Eastern Europe and its strategy for meeting the Russian threat.

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Russia’s war in Ukraine has triggered the worst security crisis facing Europe since the end of the Cold War. Assessing Russia’s performance in the war thus far, and how the Russian military is evolving as a result, is an important part of that effort. This report assesses changes in the Russian military threat to NATO over the short term (two to four years), and it provides analysis on how the United States and NATO might adapt their strategies, planning, and posture in response.


Professional Bio

Dr. John R. Deni is a Research Professor of Security Studies at the U.S. Army War College's Strategic Studies Institute, a Nonresident Senior Fellow at the Atlantic Council, an Associate Fellow at the NATO Defence Collete, and an Adjunct Professorial Lecturer at American University's School of International Service.

He builds, leads, and manages collaborative multinational project teams, solves problems for customers and stakeholders, and advises senior civilian and military leaders.


His work has appeared in the Wall Street Journal, the L.A. Times, the Washington Post, Foreign Policy, Defense News, NPR's Weekend Edition, Newsweek, the Baltimore Sun, War on the Rocks, and a variety of peer-reviewed journals. He is the author of three books on European and American security and the editor or co-editor of six more.

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