cfr.org/articles/soviet-premier-nikita-khrushchev-warns-president-john-f-kennedy-of-catastrophic-consequences-cuban-missile-crisis-day-eight Soviet Premier Nikita Khrushchev Warns President John F. Kennedy of “Catastrophic Consequences”—Cuban Missile Crisis, Day Eight
On October 23, 1962, the Organization of American States nearly unanimously backed the U.S. naval quarantine of Cuba, and Adlai Stevenson denounced the Soviet Union at the UN. Khrushchev's reply rejected the quarantine and warned of catastrophic consequences, while Kennedy signed Proclamation 3504 and demanded compliance.
— via CFR (Council on Foreign Relations)
