North Korea in the Korean War parallel boundary, but they could not agree on whether prisoners of war should be forcibly "repatriated." Finally, after around more than two years of negotiations, the adversaries signed an armistice on July 27, 1953. The agreement drew a new boundary near the 38th parallel that gave South Korea an extra 1,500 square miles of territory; and created a 2-mile-wide "demilitarized zone" that still exists today in the North and South Korean borders, in the bottom and top, respectively. The Korean War was relatively short but exceptionally bloody compared to other wars. Nearly 3 million people died. More than half of
Soviet Union in the Korean War pilots flying MiG-15 jets participated in battles around the Yalu River Valley on the Chinese-Korean border in the area known as "Mig Alley" and in operations against UN "trainbusting" attacks in Northern Korea, with considerable success. The lack of a shared language between Soviet, Chinese and North Korean pilots frequently led to incidences of friendly fire as other MiG fighters were mistaken for American F-86 Sabre jets and shot down. The MiG-15 was a jet aircraft, supplied in large numbers to Chinese and North Korean forces during the war by the Soviet Union. Owing to their modern design (they were