I have heard that it was a Titan II warhead at 25 megatons, but have not verified.
The first was made in the US. The purpose was originally to defend against the possibility of a Nazi bomb. 1945.
US
1945
To end WWII.
US
no it did ont
1945
US, who else?
In order to develop the A-bomb
one no, many yes
Doubtful.
they have nuclear missiles. and they have many powerful explosives. and yes massive bombs.