 On 21 March 1945, in response to a request by the Danish resistance that the Copenhagen Gestapo headquarters should be destroyed, 20 RAF Mosquitos left for Copenhagen on a mission designated Operation Carthage.The target was "Shellhuset" (The Shell House) on Kampmannsgade in the city centre which housed the Gestapo.One of the Mosquitos in the first of three waves hit a tall lamppost, causing it to crash into a garage close to the school.