sentences:  The raid reached such a new and severe level of destruction that Joseph Goebbels later used the term "coventriert" ("coventried") when describing similar levels of destruction of other enemy towns.During the raid, the Germans dropped about 500 tonnes of high explosives, including 50 parachute air-mines, of which 20 were incendiary petroleum mines, and 36,000 incendiary bombs.The raid of 14 November combined several innovations which influenced all future strategic bomber raids during the war.