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Later , Marshal Mikhail Tukhachevsky ( 1893 - 1937 ) , ( 1898 - 1976 ) and other members of the Red Army developed a concept of deep battle from the experience of the Polish–Soviet War of 1919 – 1920 .
 Mikhail Tukhachevsky, Red Army
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mikhail Tukhachevsky, Red Army