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Diary September 20, 1940

U-boats of a Wolf-pack
Two U-boats of a Wolf-pack in the Northern Atlantic.
Diary for Friday, September 20, 1940:

Sea War

Atlantic: First successful U-boat Wolf-pack operation: three of the ‘ace’ commanders – Schepke (U-100), Prien (U-47) and Kretschmer (U-99) – scatter Convoy HX.72 in Northwestern Approaches and sink 12 ships totalling 77,900 t. (September 20-22).


Japanese ultimatum to Vichy authorities in French Indo-China, demanding air bases, use of Haiphong harbour and freedom to transport troops to China via Indo-China. (Vichy French agree September 22.)

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