I think the B83 (1.2 megatons) is the highest yield weapon currently in the US arsenal. Which, while terrible (9 megatons ~= pressure wave that levels most str

I think the B83 (1.2 megatons) is the highest yield weapon currently in the US arsenal. Which, while terrible (9 megatons ~= pressure wave that levels most structures in a largish city), pales in comparison to something like the B41 (25 megatons) or the B53 (9 megatons). Generally speaking, the US and Russia both realized (~70s) that building excessively large bombs was inflexible and a waste of resources. The actual first-order effects are generally smaller than what you'd expect: https://nuclearsecrecy.com/nukemap/ https://nuclearsecrecy.com/nukemap/