The Korean War began as a civil war fought between 1950–1953 on the Korean Peninsula, which had been divided by the post-World War II Soviet and American occupation zones. The conflict began on June 25, 1950, when North Korea attacked South Korea. It was greatly expanded when the United Nations, led by the United States, entered on behalf of the south and mainland China retaliated backing the north. The fighting ended when a cease-fire was reached on July 27, 1953.
Unlike World War I and World War II, the US involvement in Korea did not affect baseball greatly. Fewer major league players served in the military during the Korean War than the previous two: notable exceptions included Ted Williams, Don Newcombe, Whitey Ford and Willie Mays. Additionally, the war did not cause many minor leagues to halt play. However, some minor league players lost their lives during the conflict, as well as former major leaguer Bob Neighbors.