This study undertakes to examine the aerial interdiction activities conducted against the enemy railway system by United Nations' forces during the Korean War, June 1950-July 1953. It has three major goals: (1) to compile a concise history of these interdiction activities; (2) to evaluate the effectiveness of these efforts as it might relate to the conduct of the total war effort; and (3) to make recommendations pertaining to the future conduct of aerial interdiction.