Operation Decker

'Decker' was a British unsuccessful attempt, in parallel with 'Razzle', by Air Marshal Sir Charles Portal’s RAF Bomber Command, to start major fires by dropping large number of 'Decker' incendiary bomblets (cloth strips coated with white phosphorus) on fields of crops and in woodlands in the hohes Harz, Schwarz and Thuringian forests (summer 1940).