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In the old days of the Cold War when Soviet leaders met with Cuba 's Fidel Castro , it was usually a time for bear hugs and long and often fiery ideological speeches .
 the Cold War, Soviet, Cuba, Fidel Castro
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 the Cold War, Soviet, Cuba, Fidel Castro