Detailed Instructions: Generate a correct and concise answer for the question based on the words in the context.
Q: Context : Denis Gage Deane-Tanner was the fourth of five children born to Jane O'Brien and British Army Major Kearns Deane-Tanner in what is now Carlow, Ireland.
Question : Which entity was Denis Gage Deane-Tanner a part of?
A:
British Army