Defense

The State Department has shifted the model underpinning its internal chatbot, StateChat, from Anthropic’s Claude Sonnet 4.5 to OpenAI’s GPT-4.1,…

The Department of Homeland Security plans to install AI upgrades in 148 of its uncrewed camera towers on the U.S.…

Key refueling-related tests for the B-21 Raider are now underway, an Air Force spokesperson confirmed to Defense One, the latest…

The Pentagon plans to buy 30,000 one-way attack drones this month, but the military’s ability to repair or even build…

US-Israeli war on Iran, day 12: An estimated 140 to 150 U.S. service members have been injured in Trump’s Iran war…

HONOLULU—“What happens when you concentrate on one [AI] model and all of a sudden that model isn’t available to you?”…

US-Israeli war on Iran, day 11: Trump, Hegseth send conflicting messages to the world about the end of war on Iran.…

Apparent Russia-linked hacking collectives backing Iran have been observed joining the cyber activity unfolding alongside the U.S.-Israel war against Iran,…

The Senate has confirmed President Donald Trump’s pick to lead Cyber Command and the National Security Agency in a dual-hatted…

A year after Secretary Pete Hegseth launched a hasty effort to reduce the Defense Department’s civilian workforce by up to…

Defense Secretary Pete Hegseth has narrowed the U.S.’s objectives in Iran to three, scrapping President Donald Trump’s recent calls for…

The Defense Department is reupping its search for civilian employees to deploy to the southwest border to participate in immigration-enforcement operations—and…