Daylight raids and fighter sweeps over northern France, known as ‘Circus’ raids, had been under way all year. The invasion of Russia had seen the greater part of the Luftwaffe transferred to the east. Now the RAF stepped up their attacks in an attempt to force the Germans to maintain stronger air defences in the west.
Aircraft of Bomber Command continued their offensive operations against targets in North-East France and Germany, in the course of which hits were registered on Steel Works at Lille, Power Stations, at Comines and Pont-a- Vendin nearby, a crowded railway yard near Oldenburg, runways and buildings at Merville Aerodrome and the seaplane base at Borkum.
The attacks by bombers on objectives in France were made with fighter escort, and fighter sweeps were also carried out over these total of 124 squadrons being employed. We lost 11 bombers and 24 fighters, but the pilots of 2 Spitfires were rescued. Ten aircraft were destroyed by our bombers, who probably destroyed 3 more and damaged 7. Our fighters shot down a total of 39 Messerschmitts, including a number of Me. 109 Fs, probably destroyed 15 more and damaged 18.
The increase in German defensive patrols noted last week was maintained, the average being 290: per day over the Straits area, though on the 27th June these reached the exceptional figure of 590 sorties.
From the Air Situation Report for the week see TNA CAB 66/17/24