A month after the attack on Lübeck, Bomber Command launched a series of four raids on Rostock, eighty kilometres to the east, causing even greater destruction. Goebbels described it as a ‘Terrorangriff’ – a ‘terror attack’ – and from then on Bomber Command aircrews were called ‘Terrorflieger’. Harris was now openly defining success by the number of urban acres his bombers had reduced to rubble.