Only nine countries worldwide possess nuclear weapons, but the number of warheads among these nations is staggering. Despite ...

A new US nuclear weapon 24 times more powerful than the one used on Hiroshima is being rush-produced because of an “urgent” and “critical” threat from rising global tensions, according to ...

Officials stress the B61-13 replaces older models without increasing the United States’ total nuclear weapon numbers — but it represents a critical upgrade at an increasingly dangerous time. The ...