A former officer at a Russian nuclear weapons base has shared a rare account of the high alert status during the first days ...

President-elect Donald Trump has nominated Keith Kellogg, a former national security adviser and retired lieutenant general ...

The U.S. believes Russia will aim to match what it views as U.S. escalation, and that nuclear force is unlikely — though not ...

Elon Musk accused former Army officer and Trump administration official Alexander Vindman of treason after he suggested the X ...