Episode Detail: Secret Subs of Pearl Harbor; Mountain Heroes of World War II; War Code: Najavo; Battle for Berlin - National Geographic Explorer
The story of a Japanese midget submarine that sank outside Pearl Harbor an hour before the Japanese air assault began on the American Naval base on Dec. 7th, 1941. Also recalled: the Army's 10th Mountain Division, which used skis; a WWII-era code that was based on the Navaho language; and the 1948-49 airlift to West Berlin.