Threats

US strikes on Iran not a step toward ‘open-ended war,’ SecDef says

Operation Midnight Hammer saw the first use of the GBU-57 Massive Ordnance Penetrator.

Threats

US joins Iran-Israel war

Trump, who ordered strikes on three Iranian nuclear facilities, threatens more action.

Threats

Mossad agents sabotaged Iranian defenses as airstrikes began, Israeli official says

Covert units inside Iran used precision-guided weapons and vehicle-mounted systems to suppress air defenses, an Israeli security official said in remarks distributed to press.

Science & Tech

Pentagon program could kickstart a new era of nuclear power

AI is driving investor demand for new nuclear power concepts. The Defense Department is poised to give the best ideas a big boost.

Ideas

France, UK must heed the call of Europe's new nuclear age

Paris and London can provide the assurances that stop a continental race for nuclear weapons, but it won't be easy.

Ideas

The end of nonproliferation?

The United States' rejection of security commitments could lead to a spike in nuclear-armed states.

Policy

Trump administration fires hundreds of nuclear-security employees, sources say

The National Nuclear Security Administration maintains the nuclear stockpile, counters terrorism, disposes of dangerous nuclear material, among other missions.