An immensely powerful bomb whose destructive power comes from the rapid release of energy during the nuclear fusion of isotopes of hydrogen (deuterium and tritium), using an atom bomb as a trigger.
- The atom bomb, the hydrogen bomb, and ballistic missiles had all been ‘perfected.’
- The atomic bomb was superseded in the 1950s by the hydrogen bomb, the potential power of which was at least ten times that of its predecessor.
- A hydrogen bomb is triggered by an atomic bomb, and so could only be developed by countries that already had an atomic weapon capability.
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