Denmark has supported America’s military aims for decades, deploying alongside US troops in Afghanistan and Iraq—and suffering a higher per capita casualty rate than the United States.

A US invasion of Greenland would be a comparatively simple military operation. The real consequences—political and diplomatic—would come in the days and weeks afterwards.

The Columbia-class submarine outstrips its predecessor, the Ohio class, in many ways—but falls short in one conspicuous one.

European Defense Commissioner Andrius Kubilius observed that the United States had one army, not 50—and was far stronger for it.

For the United States, leadership means both the ability to act and the ability to create frameworks that everyone will ...

As a member of NATO, Turkey could contribute fighter jets to air policing missions along NATO’s eastern frontier—although there is little hard evidence that it will actually do so.

AI is lowering barriers to CBRN threats—but with coordinated public-private partnerships, the same technologies can become ...

Russia has made similar claims against Ukrainian F-16s in the past. Most have turned out to be false, and neither Ukraine nor NATO has confirmed the most recent one.

The sailor, Jinchao "Patrick" Wei, hoped to gain employment with the Chinese government by passing secret US Navy manuals.

The T-80BVM tank is a relic of the Cold War—and, though still effective on the battlefield, has required up-armoring to keep it relevant in the modern era of warfare.