Viic Websites
uboatarchive.net
Documents and photographs from the battle between German U-boats and Allied Forces in WWII
1,688,067 
$ 720.00
uboat.net
The U-boat War in World War Two (1939-1945) and World War One (1914-1918). Over 30,000 pages on the officers, the boats, technology and the Allied efforts to counter the U-boat...
179,307 $ 61,800.00