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A memorandum issued on 20 October 1963 by Raúl Castro mandated a high standard of behavior for the troops , with strict instructions being given on their proper conduct during foreign interventions .
 Raúl Castro
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Raúl Castro