USA
No country is known to currently have neutron bombs. The concept was developed in the US in the early 1960s (and some testing along those lines was done by, at least, the US and France in the mid-1960s), and France actually tested a full neutron bomb in 1980.
In July 1999, India officially announced that it had successfully mastered the technology to develop a neutron bomb.
the usa was the first to develop the atom bomb thanks to albert Einstein
Pakistan is the first and still the only Muslim country to make atomic bombs.
the neutron bomb was called as capitalist bomb because it destroyed people not property
Germany
US
America
yes we did
Neutron bomb
An well known country that developed the flying bomb in WW2 was Nazi Germany with the V1 Bomb. However, the flying bomb can be traced back to the US in 1916 but wasn't that successful.