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,
Aftermath of the Korean War forces than in previous wars. For service during the Korean War, the U.S. military issued the Korean Service Medal. However, many still-living Korean War veterans claim that their country tends to neglect the remembrance of this war. With more overt displays made for World War I, World War II, the Vietnam War, the Persian Gulf War, the War in Afghanistan, and the Iraq war, the Korean War has come to be dubbed by some as the "Forgotten war" or the "Unknown War." As a partial remedy, the Korean War Veterans Memorial was built in Washington, D.C. and dedicated to veterans