The Caribbean War Front in World War II: The Untold Story of U-Boats, Spies, and Economic Warfare — Markus Wiener Publishers

U-Boat War, The: A Global History 1939–45: Paterson, Lawrence

The John E. Taylor Collection

Oil & War

Barton C. Hacker, Margaret Vining-A Companion To Women's Military

The Longest Struggle - Warfare History Network

Scorched Earth: Submarine Warfare - Full Documentary

Silent Hunters in Blue Waters - German U-Boats in the Caribbean

U-Boat War, The: A Global History 1939–45: Paterson, Lawrence

Dönitz Atlantic Wolves

Holiday Edition - 2019 by TopShelf Magazine - Issuu

The Caribbean Front in World war II: Bolívar, José L

The U-boat Commanders: Knight's Cross Holders 1939-1945 by Jeremy

The Nation-State System during the Cold War (Part III) - The