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  US U2 spy plane takes photos of USSR missile sites in Cuba
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  Kennedy is advised that the Soviets have missile sites on Cuba He establishes the Executive Committee
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  JFK establishes blockade
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  JFK calls on USSR to remove missiles
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  Kennedy publicly calls on Khrushchev to remove weapons
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  Khrushchev refuses to acknowledge blockade or presence of Soviet missiles on Cuba
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  1st Soviet ships (accompanied by submarine) approach 800 km exclusion zone
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  10:32 am, Soviet ships stop and turn round
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  aerial photos show continued construction of missile sites
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  Kennedy receives second letter calling for withdrawal of US missiles in Turkey too - this one is more aggressive
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  US U2 plane shot down over Cuba & pilot killed. Kennedy decides to ignore second letter, but accepts terms of 1st letter
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  Khrushchev agrees to dismantle Soviet missiles in Cuba