Hmmmm.... but then, if Khruschev had put missiles in Cuba anyway, not trusting whover JFK's successor was, we might have had WWIII.
When the missile silos were discovered, our military was straining at the bit to invade. (I had a friend whose mother was a photographic analyst in Washington -- during the Cuban Missile Crisis, she was scanning aerial photos of Havana, looking for soccer fields and similar places where the Airborne could come down.)
But JFK had read Barbara Tuchman's
The Guns of August -- about how the Great Powers stumbled in into WWI. (He was so impressed with it, and the danger of sleepwalking into war, that he had 250 copies bought and distributed to all the generals and admirals.)
So he held back the military, and went for a blockade. Had we invaded Cuba, the Soviets already there would almost certainly have responded with tactical nuclear missiles that were already there, but that we did not know about.
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Cuban Missile Crisis - Wikipedia ]
So we were lucky we had JFK in place. 'We' being the human species. Of course, first in line for credit for preventing WW3 in 1963 is the late Commodore Vassily Arkhipov, to whom a solid gold statue should be raised in every American, European and Russian population center.
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Vasily Arkhipov - Wikipedia ]