21392
( On a side note , the reviewer noticed that the historical order of battle , taken from the publications of David Glantz , had to be adjusted by the game designers , because some duplications were found ) .
 David Glantz
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 David Glantz