China, the U.S., Russia and others have ramped up their contest over artificial-intelligence-backed weapons and military systems. The buildup has been compared to the dawn of the nuclear weapons age.

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.S. and Russian nuclear forces.

International treaties including the Chemical Weapons Convention (1997), Biological Weapons Convention (1975), Ottawa Treaty (1999), and Convention on Cluster Munitions (2010) banned weapons like mustard gas, sarin, VX, anthrax, smallpox, anti-personnel ...

The country has been leveraging armed conflicts abroad, such as Russia’s war against Ukraine, to bolster its own military capabilities.

The Los Alamos lab in Michigan will simulate nuclear weapon experiments. Here's what you need to know about them.

This article surveys 30 weapons that transformed warfare over the past century, from the AK-47 and M16 rifles to modern systems like the F-22 Raptor, MQ-9 Reaper, and hypersonic weapons, each fundamentally changing how battles are fought through advances ...

Finland plans to declare that it won’t station nuclear weapons on its territory in peacetime even as the Nordic country is changing its laws to allow such a move.