In article , Christopher Campbell wrote:
never been interested in such a weapon. The smallest weapon ever tested by
the US was the UCRL Swift device in 1956.

I think the Davy Crockett round they tested in the early 60s was
actually smaller than that, I think it had a yield of around 20t (but I
could be wrong).

--
Dylan Smith, Castletown, Isle of Man
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