Part 1: When North Korea surged across the border of its southern neighbor on June 25, 1950, South Korea and its Western allies were caught off guard. The UN acted swiftly, but the contingent, unprepared for North Korea's fanatical determination and fighting skill, soon found itself thrown back into disarray ; and the allies faced a humiliating evacuation. Part 2: With the UN forces on the verge of being pushed into the sea, the stage was set for...