About half the book covers the operations of the Kriegsmarine supply ship, the Nordmark. The other half covers the operations of the battleships, raiders and U-boats she supplied during her times at sea. The end is also her times with the Royal Navy as HMS Bulawayo and the development of resupplying at sea in the Royal Navy after World War 2. Not a great read, but still informative as a 'behind the scenes' look of the raiders of the Kriegsmarine.