Task: Text Categorization
Input (English): Context: Soviet submarine B-59 (Russian: Б-59) was a Project 641 or Foxtrot-class diesel-electric submarine of the Soviet Navy. It played a key role in the Cuban Missile Crisis when senior officers – believing they were under attack – considered launching a nuclear torpedo with an 10 kiloton[citation needed] warhead.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)Company, 3)MeanOfTransportation, 4)Plant
Output (English): 3