Diary for Monday, September 23, 1940:
Atlantic – DAKAR EXPEDITION (Operation Menace): Unsuccessful British-Free French attempt to occupy Dakar, Vichy stronghold in West Africa. Vichy battleship Richelieu (partially repaired following July 7, 1940, incident), shore batteries and submarines hold off 3 British battleships, 4 cruisers and carrier Ark Royal. Barham, Resolution and cruiser Cumberland damaged; 1 Vichy destroyer and 2 submarines sunk. Total French casualties, 563.