In early 1970 the barracks also became home to 39 Infantry Brigade and provided the headquarters for the Ulster Defence Regiment. The Brigade, as 39 Airportable Brigade, was involved in The Troubles in Northern Ireland, eventually taking on responsibility, under HQ Northern Ireland, for an area including Belfast and the eastern side of the province, but excluding the South Armagh border region. From September 1970, it was commanded by (then) Brigadier Frank Kitson.