In June 1943, a Kentucky congressman walked up to a microphone and gave Japan one of its greatest intelligence victories of WWII.

Patrick Zilliacus, a WWII torpedoman on the USS Spot, shares how submarine combat worked in the Pacific. Hear firsthand stories from life aboard a hunter-killer group.

Aircraft carriers replaced battleships as dominant naval power during WWII by striking targets hundreds of miles beyond visual range. Submarines waged economic warfare targeting supply lines. German U ...

Submarines operated in both the Atlantic and Pacific theatres, attacking warships, merchant vessels and supply routes throughout the second World War.