For the first time in more than half a century, there are no binding restraints on the buildup of the largest nuclear forces on Earth. The New START treaty expired on Feb. 5, 2026, ending the last agreed limits on U.

U.S. Air Force officials started looking for alternatives to the service’s next-generation anti-radiation missile on March 4, following an example set in February by the U.S. Navy for its version of the weapon. The nearly $1.8 million Stand-in Attack Weapon (SiAW) is in production by Northrop...

Nuclear deterrence is once again central to U.S. national security. The relative calm of the post-Cold War world has been replaced by an era of dangerous competition with two nuclear armed adversaries. China is rapidly expanding and diversifying its ...

The United States and Russia are entering a new phase of nuclear relations with no treaty limiting their arsenals, as President Donald Trump calls for a sweeping new arms control agreement and Russian officials warn that Washington’s approach would make ...

The Pentagon and the Federal Aviation Administration plan to jointly test a high-energy laser weapon designed to shoot down small drones at White Sands Missile Range in New Mexico. The test, announced in early March 2026,

Mojtaba Khamenei will be Iran's new supreme leader following the killing of his father, according to officials. President Trump told Fox News he is not happy about the selection and previously said he wants to be involved in picking the next leader.