Brigade major
A brigade major was the chief of staff of a brigade in the British Army. He most commonly held the rank of major, although the appointment was also held by captains, and was head of the brigade's "G - Operations and Intelligence" section directly, and oversaw the two other branches, "A - Administration" and "Q - Quartermaster". Intentionally ranked lower than the lieutenant-colonels commanding the brigade's combat battalions, his role was to expand on, detail and execute the intentions of the commanding brigadier.