The Defense of South Korea
The Korean Conflict began when North Korea invaded South Korea with the front line close to the 38th parallel. Jets confronted each other in air-to-air for the first time, and Soviet pilots covertly flew in defense of their communist allies, ending on 27 July 1953, when an armistice was signed. The agreement created the Korean DZ to separate North and South Korea, and allowed the return of prisoners. However, no peace treaty has been signed.