Your comment is only technically correct, so I am gonna add to that:
Alfred Nobel did invent dynamite and was also a believer in mutually assured destruction, BUT: those two facts are not directly connected.
Dynamite in itself was not intended for warfare, but for mining. It was still relatively unstable so not really suited for warfare. (TNT, which came around 1900, solved that problem.)
Nobel did invent smokeless powder for warfare and he transformed Bofors into an arms manufacturing company though.