Two WWII shipwrecks lie two miles apart in the Gulf of Mexico . Two is a German U-boat that sank an American steamer . `` Historians say U-boats sank at least 50 American ships in the Gulf , one in the very mouth of the Mississippi River . Nazis sank One German ships in the the Gulf of Mexico during the war . Exploration Vessel Nautilus conducted dives in July to learn more about 1942 incident .
Two WWII shipwrecks lie two miles apart in the Gulf of Mexico . Two is a German U-boat that sank an American steamer . Nazis sank One German ships in the the Gulf of Mexico during the war . Exploration Vessel Nautilus conducted dives in July to learn more about 1942 incident .