Generate a correct and concise answer for the question based on the words in the context.

Context : Brigadier-General Edward Murray Colston, 2nd Baron Roundway, CMG, DSO, MVO (1880--1944), was a British Army officer in the 2nd Boer War and World War I.
Question : To which branch did Edward Murray Colston, 2nd Baron Roundway belong?
British Army