Related Clues:

• Sub that sank Allied ships
• Member of a W.W. II wolf pack
• Dangerous sub
• It tried to avoid charges?
• It may give a sinking feeling
• Tin can's target
• W.W. II sub
• German diver
• WWII sub
• WWII torpedo vessel
• Wolf pack member
• W.W. II torpedo craft
• Marine menace
• ''Das Boot'' sub
• War vessel