The atomic bomb dropped on Hiroshima was about a 15-kiloton bomb. The DoD fact sheet released in October 2023 said the "B61-13 will have a yield similar to the B61-7, which is higher than that of ...

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 ...