The 1st Army Tank Brigade was a formation of the British Army during the Second World War. A Tank Brigade was intended to support the Infantry and was mostly equipped with slow moving Infantry tanks, unlike an Armoured Brigade, which was equipped with faster cruiser tanks and later its own motorised infantry. Initially using infantry nomenclature for its smaller units, company and section and having 175 light and infantry tanks, it later adopted cavalry nomenclature of squadron and troop and later in the War grew to 240 tanks.
