You need to go read up on A-Bombs 101. Fission bombs involve driving chunks of appropriate materials together with explosives, in order to achieve critical mass and a fission reaction. H-bombs typically use a heavy-hydrogen core, inside of an A-bomb, to actually fuse nuclei and create an even bigger explosion.
Look I'm not going to argue with you I know enough about a-bombs and nuclear energy in general, that I know the difference between fusion and fission,
fission is also the process with which nuclear power plants operate which requires no driving together or compacting of materials.
I believe you should do a little more studying of the subject.