Soon after arriving in Korea, the brigade was in action, being involved in the defence of the Pusan Perimeter, on 29 August 1950, and the UN offensive to link with the Inchon landings. The brigade was joined in September 1950 by an Australian contingent, 3rd Battalion, Royal Australian Regiment (3 RAR), and in December 1950 by the 2nd Battalion, Princess Patricia's Canadian Light Infantry. At this time the brigade had few of the support units that were a normal feature of other Commonwealth units in Korea, and were always at a disadvantage in this respect, being reliant on US support units.