People spend a lot of time remembering that Korea was the forgotten war.
The attack by North Korea on South Korea was a complete surprise and is probably better than the Berlin Blockade as the beginning date of the Cold War. North Korea went Communist in September 1948. At first, the North tried to forment insurgency in the South. When that failed, the North government attacked with the North Korea People's Army across the 38th parallel at dawn on Sunday, June 25, 1950. Today South Korea is prosperous and relatively democratic.