243170
Lieutenant Herbert Denham Brotheridge was a British Army officer , and is often considered to be the first Allied soldier to be killed in action on D-Day , 6 June 1944 , during Operation Tonga .
 Brotheridge, British 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:
 Brotheridge, British Army