Teacher:Generate a correct and concise answer for the question based on the words in the context.
Teacher: Now, understand the problem? Solve this instance: Context : Lieutenant-Colonel Sir David Semple MD (1856 -- 1937) was a British Army officer who founded the Pasteur Institute at Kasauli in the Indian state of Himachal Pradesh.
Question : What was the military branch for David Semple?
Student:
British Army