The most powerful weapon in the US nuclear arsenal is the B83 nuclear bomb. Developed in the late 1970s and in use since 1983, the B83 is a variable-yield gravity bomb with unparalleled destructive ...

The world’s nuclear-armed states are beefing up their atomic arsenals and walking out of arms control pacts, a think tank has said. A new arms race is emerging after decades of reductions in the ...