Cuban Missile Crisis is a bad example. In a hindsight, advice by Taylor and LeMay for airstrike was spot on. That would be the best way to solve Soviet problem once and for all.

Back then, no one could precisely know, and on a tactical level, advice was bad - the missing thing is that Soviet nuclear weapon stocks especially mated to delivery vehicles were many times smaller than believed, so any probable scenario lead to either a clean U.S. victory/Soviet capitulation and dismantlement of Communism, or simply thorough elimination of all Eastern Bloc.