82673
The continuing improvement of the torpedo meant that submarines and destroyers would be able to destroy battleships ; this in Fisher 's view heralded the end of the battleship or at least compromised the validity of heavy armour protection .
 Fisher
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fisher