Air Operations, Europe
The British heavily bomb Hamburg.
[
| 
]Atlantic
US flying boats begin patrols from bases in Bermuda.
[ | ]Battle of the Atlantic
- U-65 sinks the British steamer Kohinur (5168t) and the Norwegian tanker Havbor (7614t) about 250 miles north of the equator. 17 crewmen from the Kohinur are lost initially, but 31 more are lost later when the Havbor is hit while picking up survivors. 60 crewmen are lost from the Havbor. 36 survivors from the Kohinur are picked up by the British ship City of Pittsburg and 4 from the Havbor by the British ship Baron Androssan.
- The British steamer Apapa (9333t) from Convoy SL-53 is sunk by German bombing in the North Sea with the loss of 23 of her crew. Survivors are picked up by the British steamers Mary Kingsley and New Columbia.
- The British steamer Blue Galleon (712t) is sunk by German bombing in the North Sea with the loss of 3 crewmen.
| ] Damage to Shepherd Market, Mayfair |
 |
The Blitz
There are heavy night raids on London by 358 aircraft which last until 4:00a.m. 400 tons of high explosives and over 40,000 incendiaries are dropped. Among the places hit are Wesminster Abbey, the National Portrait Gallery and 4 hospitals. There are 142 people killed and 430 seriously injured.
Raid on Winton |
 |
| ]Greek-Albanian Front
The Greek counteroffensives continue with especial success for the advance from western Macedonia. The Greek III Army Corps opens a breach in the area of Mount Morova in the sector of the front held by the Italian 9th Army. The Greeks continue to take many prisoners. At Menton, the French Riviera town just beyond the Italian border, posters appear saying: 'This is French territory. Greeks, do not advance further!'
[ | ]Occupied Poland
Jews of the Warsaw ghetto are prohibited from leaving the sealed-off area.
Construction of the Ghetto Wall |
 |
| ]