The USA
Atom bomb dropped in Japan by the U.S. during WWII
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The Hydrogen bomb.
The USA created the first atomic bomb in New Mexico in the closing stages of World War Two. They used it to defeat Japan.
The hydrogen bomb.
USA
The first atomic bomb was made in 1945, the first hydrogen bomb was made in 1952.
Atom Bomb = Uranium H-Bomb = Hydrogen
China made the Atomic Bomb, no china did not make the atomic bomb. the united states made the abomb and it was called the mannhattan project
bomb shelters were made out of corigated iron with mud and grass covering it.
To have a bomb stronger than other countries.