124544
During World War II he served in various senior staff officer positions at RAF Middle East Command and Desert Air Force before being appointed Air Officer Commanding No. 84 Group in 1944 .
 RAF, Command, Desert Air Force, No.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 RAF, Command, Desert Air Force, No.