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 : The British Army's 1st Artillery Brigade and Headquarters South West is a formation under Force Troops Command that has control over close support artillery units within the British Army and is the Regional Point of Command (RPoC) for British Army units in the South West Region.
Question : What branch was 1st Artillery Brigade and Headquarters South West part of?
Student:
British Army