The U.S. began work on making nuclear bombs (atomic bombs) in WW2 out of fear that Nazi Germany might be working on them and use them to win the war, we needed to 1) determine if they could be made and 2) if they could try to make them before Nazi Germany did.
After WW2 the U.S. continued making them and began work on hydrogen bombs out of fear that the USSR might attack the U.S. and/or Western Europe.
At this time the US builds no nuclear bombs. A small number of existing bombs are refurbished as needed.
No, dropping the bombs caused the Japanese to surrender.
in pakistan Ridiculous! The first nuclear bombs were built at Los Alamos, NM in 1945.
yes
Bombs.
Sort of - The US has nuclear arms and Puerto Rico is a US territory.
None, the US currently only refurbishes existing bombs.
There are two forces responsible for radioactivity: the Strong nuclear force and the Weak nuclear force.
Nuclear, plane, land, and sea bombs.
the US
At this time Russia.
The US dropped nuclear bombs on Hiroshima and Nagasaki in Japan.