The Korean War (25 June 1950–27 July 1953) was the first, and one of the only, conflicts during the Cold War (c.1947–1989) in which forces of the world’s great powers—the United States of America, (US), the Union of Soviet Socialist Republics (USSR), and the People’s Republic of China (PRC)—actually faced each other on the battlefield. Most hostilities were conducted by proxy nations, or at most involved only one of the superpowers.
The war is often referred to as the “Forgotten War.” The appellation applies to the last two years, when the war deteriorated into a stalemate in the mountains of Korea, punctuated by small but ferocious battles for control of a single height in a sea of heights. This stalemate was the product of combat between opposing forces no longer vying for a traditional military victory but seeking favorable terms for an arranged peace.
The war would in the end create the foundations for US military policy for the rest of the Cold War, that of local wars with limited risk and limited objectives fought to further national interests without bringing on global Armageddon.
Korea–After Chosin: Korea is often referred to as the Forgotten War. Even among military history enthusiasts, not much is known about the battles and campaigns beyond Pusan, Inchon, and Chosin. The issue goes in depth from the First Chinese Counteroffensive to Pork Chop Hill and the Armistice.