The crisis began on Sunday October 14, 1962 when a United States Air Force U-2
aircraft on a photoreconnaissance mission captured photographic evidence of
Soviet missile bases under construction in Cuba (examples below).
The United States considered attacking Cuba via air and sea, and settled on a
military "quarantine" of Cuba. The confrontation ended on October 28, 1962,
when President Kennedy and U.N. Secretary-General U Thant reached a
public and secret agreement with Soviet premier Nikita Khrushchev. The
quarantine officially ended on November 20, 1962.
On Monday October 22, President Kennedy announced the discovery
of the missile installations to the public in a nationwide televised