28528
History Established by the National Guard Bureau on 30 July 1940 as the 127th Observation Squadron , and activated in August 1941 .
 Guard, 127th Observation Squadron
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Guard, 127th Observation Squadron