Earlier this month, the New START treaty, a strategic-arms reduction agreement between Russia and the United States to limit their nuclear arsenal, expired. That accord was the last in a series of ...

At least 127 earthquakes have been recorded in a highly restricted region of central Nevada that contains several major US military and nuclear-related facilities. The seismic activity began on ...

AURORA, Colorado—Anduril’s drone wingman started armed flight testing this month, marking the next major milestone for the Air Force’s collaborative combat aircraft program. The Air Force began ...

Anthropic, the AI company that has built its brand on safety-first principles, is hiring a chemical weapons and high-yield ...

US intelligence agencies believe China is developing a “new generation” of nuclear weapons — with Beijing having reportedly conducted at least one undisclosed explosive test already. China’s plan to ...

Vice President JD Vance argued that Tehran’s actions during negotiations indicated that it was aiming to acquire a nuclear weapon, causing the U.S. strike on the country. In an interview on Fox News, ...

The 1996 Comprehensive Nuclear Test Ban Treaty (CTBT) has not yet entered into force due to the failure of eight key states, including the United States and China, to ratify it and Russia’s decision ...

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

Matthew Bunn is a member of the Board of Directors of the Arms Control Association; is a member of the Committee on International Security and Arms Control of the National Academy of Sciences; has ...