Nuclear weapons derive their destructive force from nuclear fission, or from a combination of fission and fusion reactions.
Notes on verification
Well-established scientific consensus confirmed by multiple authoritative sources including encyclopedias and scientific organizations. [cascade flags: aggregator_dropped_primary_exists | tier=bronze indep_score=0.3 clusters=2 claim_tier=everyday]
Sources
- Nuclear weapon (wikipedia)
- https://www.ucs.org/resources/how-nuclear-weapons-work (corroboration)
- https://www.ebsco.com/research-starters/engineering/fission-and-thermonuclear-weapons (corroboration)