Introduction In June 1950 the Korean War began with communist armies invading South Korea. When United Nations called upon its sixteen members’ assistance in stabilizing the conflict overseas, the Royal Canadian Navy dispatched three destroyers to help: HMCS Cayuga, HMCS Athabaskan and HMCS Sioux. Air transport was also supplied by the Royal Canadian Air Force, No. 426 Squadron. August 1950, Prime Minister Louis St. Laurent authorized the recruitment of the Canadian Army Special Force (CASF). Each regiment of the Permanent Forces was instructed to raise a second battalion to be trained and equipped to uphold Canada’s obligations to the U.N. Recruits flooded in and Canada had little difficulty in honoring its commitment. Second World War veteran Brigadier General J.M. Rockingham returned from civilian life to command the Canadian Infantry Brigade to serve the U.N. With erratic wins and losses for the U.N. forces, it was decided to send only one battalion to Korea in late 1950, leaving other CASF units to continue training at Fort Lewis, Washington, forming the 25th Canadian Infantry Brigade Replacement Group (CIBRG). The 2nd Battalion of the Princess Patricia’s Canadian Light Infantry (PPCLI) commanded by Lt. Col. J.R. Stone (Big Jim), arrived in Korea at a crucial time in the U.N. forces’ defence due to Chinese intervention. Stone refused to send his men to battle until additional training was carried out in Miryang, involving brigade level training and operation of U.S. weaponry and equipment somewhat foreign to Canadian soldiers. This also was an overall familiarization with Korean terrain and tactics. By the end of February the Pats entered into action becoming part of the 27th Commonwealth Infantry Brigade. At the battle near the Kapyong River the 2nd Battalion PPCLI dug in and defended Hill 677 against successive and inexhaustive enemy attack. This rightfully earned the Battalion the U.S. Presidential Citation. Additional battalions moved overseas in the spring of 1951 under the direction of Minister of National Defence, Hon. Brooke Claxton. They joined the 28th British Commonwealth Brigade, 25th U.S. Infantry Division, and later 1st Commonwealth Division. In October and November of 1951 rotation of Canadian troops in Korea began. This included Active Force Units as well. Trained in Canada and ready for orientation in Korea, replacement troops relieved those anxiously awaiting passage home. Many valiant battles were fought by the 26,791 Canadian troops who served their country during the Korean conflict. Of this number, 1558 lost their lives or were wounded somewhere near the 38th Parallel in Korea. The names of 516 Canadian war dead are inscribed in the Korea Book of Remembrance. An additional 7000 Canadians served between ceasefire in July 1953 to the end of 1955. Following the Korean War, Canada has been active in other U.N. peacekeeping operations around the world.