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,
Parallel Line (song) of mirrors with night sky and cracked glass effect. Sometimes scene shifts to a classroom and a white background. It was also mixed with the scene from anime "Scum's Wish". All tracks written by Sayuri. Parallel Line (song) On 15 December 2016, Fuji TV's Noitamina revealed that Sayuri would perform "Parallel Line" as ending theme song for "Scum's Wish". Parallel Line was released as a single on 1 March 2017 on three edition; Reguler edition, Limited edition and Limited anime edition. The single reached number 10 on Oricon and Japan Hot 100 and 4 on Japan Hot Animation with spent