On 30 November 1950, a Third Battalion of the Regiment was formed. This battalion trained in Wainwright, Camp Borden and Ipperwash, Ontario. It provided replacements for both the First and Second Battalions during their tours of duty in Korea.
Third Battalion relieved the First Battalion in Korea in the fall of 1952 and was occupying Hill 355, “Little Gibraltar,” when the Korean War ended on 27 July 1953. After twelve months on active service, 3 PPCLI was reduced to nil strength on 8 January 1954. The CO, RSM, and selected others transferred to the Second Battalion, Canadian Guards, to form the nucleus of the new unit. Third Battalion would not be reactivated again until April 1970 . . .