Air Operations, Europe

The RAF carry out a heavy raid on Mannheim using 134 Wellington bombers.

Battle of the Atlantic

• The British tanker Arnia sinks on a mine 8 miles east-southwest of Southend Pier with the loss of 60 crewmen.
• The British steamer Isolda (734t) is sunk by German bombing near Barrels Rock Light Vessel, South Wexford with the loss of 6 crewmen.
• The Italian submarine Bagnolini sinks the British steamer Amicus (3660t) from dispersed Convoy SC-15 with the loss of her entire crew.
• U-37 sinks the Vichy French submarine Sfax and the tanker Rhone (2785t) off Cape Juby.

Finland, Politics

President Risto Ryti takes office. His predecessor, Dr Kyösti Kallio, dies suddenly of heart failure the same day.

Mediterranean

The German steamers Freienfels (7563t) and Geierfels 7605t are sunk by mines off Livorno.