No. 21 Squadron of the Royal Air Force was formed in 1915 and was disbanded for the last time in 1979.
A 21 Squadron Ventura attacking IJmuiden, in February 1943.
Operation Jericho took place on 18 February 1944 during the Second World War. Allied aircraft bombed Amiens Prison in German-occupied France at very low altitude to blow holes in the prison walls, kill German guards and use shock waves to spring open cell doors. The French Resistance was waiting on the outside to rescue prisoners and spirit them away.
Dust and smoke from Amiens prison during the raid
German troops moving a V-1 flying bomb
Four 500-lb MC bombs being loaded into a Mosquito FB.VI of 464 Squadron, RAF Hunsdon
487 Squadron Mosquitos over Amiens Prison as their bombs explode, showing the snow-covered buildings and landscape.