John R. Deni

John R. Deni is a research professor at the U.S. Army War College’s Strategic Studies Institute, a nonresident senior fellow at the Atlantic Council, and a nonresident senior fellow at the NATO Defense College. The views expressed are his own.

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Articles by John R. Deni
U.S. Army Chief of Staff Randy George speaks to U.S. soldiers at the Hohenfels Training Area in southern Germany on Feb. 6.
U.S. Army Chief of Staff Randy George speaks to U.S. soldiers at the Hohenfels Training Area in southern Germany on Feb. 6.

A Drawdown of U.S. Forces in Europe Is All but Certain

Analysis
John R. Deni
A man holds his fist in the air and shouts along with a crowd of other men holding placards.
A man holds his fist in the air and shouts along with a crowd of other men holding placards.

8 Simmering Threats You Shouldn’t Ignore in 2025

Roundup
Emma Ashford, Nick Aspinwall, Elisabeth Braw, John R. Deni, Markus Garlauskas, Mina Al-Oraibi, Natia Seskuria, Sushant Singh
A road sign reads Kursk in English and Cyrillic, with the number 108 next to it. Green grass and trees surround the sign.
A road sign reads Kursk in English and Cyrillic, with the number 108 next to it. Green grass and trees surround the sign.

What Does Zelensky Want in Kursk?

Analysis
John R. Deni
Members of the Mandalay People's Defense Forces, wearing camouflage and holding guns, head to the frontline down a road lined with greenery and flowers amid clashes with the Myanmar military.
Members of the Mandalay People's Defense Forces, wearing camouflage and holding guns, head to the frontline down a road lined with greenery and flowers amid clashes with the Myanmar military.

8 Simmering Threats You Shouldn’t Ignore in 2024

Roundup
Catherine Osborn, Elisabeth Braw, Sushant Singh, Natia Seskuria, Lynne O’Donnell, Matthew Kroenig, John R. Deni, Folahanmi Aina
Ukrainian President Volodymyr Zelensky (right) shakes hands with NATO Secretary-General Jens Stoltenberg during their joint press conference in Kyiv.
Ukrainian President Volodymyr Zelensky (right) shakes hands with NATO Secretary-General Jens Stoltenberg during their joint press conference in Kyiv.

Don’t Promise Ukraine NATO Membership Now

Argument
John R. Deni
A military aide carries the "nuclear football," which contains launch codes for nuclear weapons, while walking to Marine One on the South Lawn of the White House Oct. 3.
A military aide carries the "nuclear football," which contains launch codes for nuclear weapons, while walking to Marine One on the South Lawn of the White House Oct. 3.

Why NATO Needs to Plan for Nuclear War

Argument
John R. Deni
U.S. Secretary of Defense Lloyd Austin (L) and General Mark Milley (R), Chairman of the Joint Chiefs of Staff, testify before the Senate Armed Services Committee April 7 in Washington.
U.S. Secretary of Defense Lloyd Austin (L) and General Mark Milley (R), Chairman of the Joint Chiefs of Staff, testify before the Senate Armed Services Committee April 7 in Washington.

Yes, the United States Should Weaken Russia

Argument
John R. Deni
A Polish border post is pictured in in Zerdziny, Poland, on July 3, 2016, on the NATO nation's frontier with alliance partner Lithuania and Russia's Kaliningrad region.
A Polish border post is pictured in in Zerdziny, Poland, on July 3, 2016, on the NATO nation's frontier with alliance partner Lithuania and Russia's Kaliningrad region.

NATO Must Prepare to Defend Its Weakest Point—the Suwalki Corridor

Argument
John R. Deni
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