Fleet blockage of Germany begins
RAF drops six million leaflets over northern and western Germany
RAF Bombers attack the naval base at Wilhelmshaven and the Kiel Canal.
A Lockheed Hudson of No.224 Squadron becomes the first RAF aircraft to clash with the Luftwaffe, when it becomes involved in a fight with a Dornier Do.18 flying boat.
Poles admit to the lose of Czestochowa
French begin limited operations