Korean War two years of fighting became a war of attrition, with the front line close to the 38th parallel. The war in the air, however, was never a stalemate. North Korea was subject to a massive bombing campaign. Jet fighters confronted each other in air-to-air combat for the first time in history, and Soviet pilots covertly flew in defense of their communist allies. The fighting ended on 27 July 1953, when an armistice was signed. The agreement created the Korean Demilitarized Zone to separate North and South Korea, and allowed the return of prisoners. However, no peace treaty was ever signed,
Canada in the Korean War One RCN aviator flew with the U.S. Navy. In 1950, the Royal Canadian Air Force (RCAF) was heavily involved with the transportation of personnel and supplies in support of the Korean War. No. 426 Transport Squadron was attached to the Military Air Transport Service. During Canada's involvement in the Korean War, 600 trans-Pacific flights were flown carrying 3000 tons of cargo and 13,000 passengers. The RCAF suffered no losses. The RCAF was not involved with a combat role since no jet fighter squadrons capable of the type of combat required in Korea were yet in service, and capable fighter squadrons