Dundee Bombed in World War II. In the sky over 50th and Underwood, a Japanese balloon bomb exploded on April 18, 1945. The incendiary device flared brightly in the night, but caused no damage. The Japanese military hoped the device would create an incident, which if reported, would allow them to chart a course for other weapons. However, news of the bomb was kept secret until the day after Japan surrendered. Presented by the Dundee-Memorial Park Association May, 1992 in commemoration of the 50th anniversary of World War II.