On August 15, 1950, the 2nd Battalion was created within the regiment to be a component of the Canadian Army Special Force in response to the North Korean invasion of South Korea; the unit adopted the designation of 2nd Battalion, Princess Patricia's Canadian Light Infantry. The new battalion trained in Calgary and at CFB Wainwright, in Alberta, before boarding the USS "Private Joe P. Martinez" on November 25, 1950, to Pusan in South Korea. The battalion landed in Korea in December and trained in the mountains for eight weeks before finally taking part in the war on February 6, becoming a component of the 27th British Commonwealth Brigade of the IX American Corps in the 8th US Army. The 2nd Battalion of the PPCLI was the first Canadian infantry unit to take part in the Korean War.