On Oct. 23, 1962, a delegation of prominent Romanians arrived at the Kremlin to meet Soviet Premier Nikita Khrushchev. Their host was foul of mood. Boorish and suspicious by nature, the strongman had spent a sleepless night deliberating with the Presidium over what to do in the escalating crisis for which Khrushchev himself was responsible: his secret installation, across that summer, of nuclear-weapons systems and some 40,000 Soviet troops in Cuba.
Aerial reconnaissance revealed the installations to the Americans on Oct. 14, and President Kennedy, in a televised address eight days later, announced a naval quarantine to block delivery of additional weapons to the island. All sides—with the exception, perhaps, of Fidel Castro, who relished Havana’s role at the center of world events—feared that any display of aggressiveness, or miscalculation, could trigger an apocalyptic nuclear exchange.