Experts fear cascade of nuclear proliferation as Trump shakes alliances

U.S. allies contemplate the once-unthinkable: building their own nuclear arsenals.

• Patrick Tucker
• March 10, 2025

The D Brief: Ukraine’s intel quandary; Pentagon’s civilian firings; Speedier-software policy; Russia’s military horses; And a bit more.

• Ben Watson, Bradley Peniston and Eric Katz
• March 10, 2025

The D Brief: Russia pounds Ukraine; Trump disavows NATO principle; Europe talks nukes; DOGE’s oops; And a bit more.

• Ben Watson and Bradley Peniston
• March 7, 2025

Pentagon to build AI for war planning in Europe and Asia

Scale AI will develop an AI tool for interactive war gaming, resource allocation, analyzing Chinese threats.

• Patrick Tucker and Jennifer Hlad
• March 5, 2025

The D Brief: Oval Office explosion; Spies target shaken feds; Strykers to the border; China’s battle automation; And a bit more.

• Bradley Peniston and Ben Watson
• March 3, 2025

After Oval Office disaster, Europe emerges as Ukraine’s best hope

Friday’s fiery Trump-Zelenskyy meeting sets up hard choices across the Atlantic.

• Patrick Tucker
• February 28, 2025

Defense One Radio, Ep. 173: Testing the Army’s new fighting strategy on Ukraine's doorstep

A 10th Mountain Division brigade commander talks electronic-warfare, innovation, and something he'd never experienced in the Army.

• Ben Watson and Patrick Tucker
• February 21, 2025

The D Brief: DOD firings on hold, for now; Acquisition-policy shift; More US-Russia talks; Air Force One, accelerating?; And a bit more.

• Ben Watson and Bradley Peniston
• February 21, 2025

The D Brief: SecDef seeks $8B shift; Trump’s Ukraine plans, decried; Quantum chip breakthrough?; Warship maintenance goals; And a bit more.

• Ben Watson and Bradley Peniston
• February 20, 2025

The D Brief: Trump blames Kyiv for war; DOGE at Pentagon; Uncertainty at SDA; State’s Afghan-resettlement office at risk; And a bit more.

• Ben Watson and Bradley Peniston
• February 19, 2025

The D Brief: ‘Start negotiations immediately’; Gabbard, intel chief; 5K troops at border; State Dept.’s armored Teslas?; And just a bit more.

• Ben Watson and Bradley Peniston
• February 13, 2025

How Trump could productively reshape the transatlantic defense relationship

If rearming Europe and ending the war in Ukraine deters China, all the better.

• Alexandra de Hoop Scheffer
• February 13, 2025

The D Brief: Hegseth pans Kyiv’s ‘unrealistic objective’; Anti-ISIS airstrikes; USAID IG fired; ‘Stunning twist’ for Army headset; And a bit more.

• Ben Watson and Bradley Peniston
• February 12, 2025

The D Brief: Air Force efforts, on hold; Desk deficits as workers return; Foreign-aid monitoring, slashed; It’s Fort Bragg again; And a bit more.

• Ben Watson and Bradley Peniston
• February 11, 2025

The D Brief: Hegseth’s town hall; Trump: annex Canada; Purge reaches academies, schools; Full-year CR?; And a bit more.

• Ben Watson and Bradley Peniston
• February 10, 2025

The D Brief: USAID lockout; Musk seizes US payment system; Global markets tumble; Army aviation’s bad year; And a bit more.

• Ben Watson and Bradley Peniston
• February 3, 2025

The D Brief: Army helo, airliner collide; Trump orders Gitmo expansion; Natsec moves, polled; How DeepSeek may change military AI; And a bit more.

• Ben Watson and Bradley Peniston
• January 30, 2025