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During the 1920s and 1930s , Vanquisher was assigned to the Atlantic Fleet and Mediterranean Fleet , and in 1938 she was attached to the 1st Antisubmarine Flotilla at Portland , England .
 Atlantic Fleet, Mediterranean Fleet, England
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Atlantic Fleet, Mediterranean Fleet, England