John F. Kennedy Decides to "Quarantine" Cuba in Response to Nuclear Threat

In the course of this conference, blockade papers were approved and the President's speech set for Monday night at 1900Q (October 22). Although the President at first wished to make the statement on the 21st, he was dissuaded from this to allow for adequate military preparations and to provide for time to notify our allies. The possibility remained, however, of acting sooner if a security breach developed.

That night, the State Department sent preposition messages to all Latin American posts to warn against Communist-inspired rioting and to indicate the course to be taken if violent actions transpired.

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