Allied Planning

Churchill proposes to mine the waters of the Rhine between Strasbourg and the river Lauter, using mine-laying aircraft.

Baltic Sea

The Finnish steamer Toras (1016t) is captured by a German warship. It is later placed in German service under the name Fiducia.

Battle of the Atlantic

• The Italian steamer Grazia (5857t) hits a mine and sinks 5 miles north of North Foreland with the loss of 6 crewmen. This is the result of the German destroyer minelaying operation in the Thames Estuary the night of the 12th. 24 survivors are picked up by the British destroyers Griffin and Gipsy.
• The British steamer Torchbearer (1267t) sinks after hitting a mine 2 miles from the Shipwash Light Vessel. 4 of the crew are lost and the British destroyer Greyhound picks up 8 survivors.
• The French steamer Rhuys (2921t) hits a mine and sinks 2-1/2 miles south of Humber Light Vessel with the loss of 16 crewmen. This is the result of the German destroyer minelaying operation in the Thames Estuary the night of the 18th. 17 survivors are picked up.
• The Swedish steamer B O Borjesson (1586t) hits a mine and sinks off the Humber with the loss of 6 crewmen. This is the result of the German destroyer minelaying operation in the Thames Estuary the night of the 18th. Survivors are picked up by the British Rose Of England and the British trawler Frascati.
• U-57 sinks the British steamer Stanbrook (1383t) in the North Sea between Antwerp and the Tyne.
• U-41 sinks the British steamer Darino (1351t) west of Biscay. 16 of the crew are lost. The submarine picks up the survivors and later transfers them to the Italian steamer Caterina Gerolinich.
• The British steamer Pensilva (4258t), a straggler from convoy OG-7, is sunk by U-43 west of Biscay. The survivors are picked up by the British destroyer Echo after she makes a couple of attacks on U-49 which is in the area.

Poland

The Germans erect barricades around the Jewish quarter of Warsaw.