| Annotated vertical aerial photograph taken during a daylight raid on the Fives/Lille steel and engineering works at Lille, France, by Short Stirlings of No. 3 Group. Bombs can be seen exploding on the east side of the works ('1'), while other bombs fall to the east and south-east ('2'). For a short period in July 1941, Stirlings, with a heavy fighter escort, were used in 'Circus' operations with the aim of provoking a response from Luftwaffe fighters. |