A US spy plane photographed a Soviet missile base in Cuba and this event that occurred in October 1962, sparked the Cuban Missile Crisis between the United States and the Soviet Union. Thus, Option D is correct.
The two United States and the Soviet Union entered into their major Cold War conflicts after the pilot of an American U-2 spy plane piloted by Major Richard Heyser passed through Cuba on October 14, 1962, photographing a Soviet SS-4 medium; a ballistic missile list compiled for inclusion.
Thus, Option D is the correct Statement.
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