Title: U-Boat Versus Aircraft
Subjects: Submarine warfare, Air warfare, Anti-submarine warfare, History, World War, 1939-1945, Naval operations, Submarine, German Naval operations, British Aerial operations, American Aerial operations, Canadian Aerial operations, Guerre anti-sous-marine, Histoire, Guerre mondiale, 1939-1945, Opérations sous-marines, Opérations navales allemandes, Opérations aériennes britanniques, Aerial Military operations, American, British, Canadian, Naval Military operations, German