Ironically, it proved to be that British counter-intelligence was far more effective in the fight against the V-2 than anything else the British could field against the rockets. The Germans relied on spies in London to give them accurate damage and target accuracy reports but British counter-intelligence had turned almost all spies in Englad and they reported false information back to Germany. The double agents would report back that the rockets were going long and impacting far beyond of London. This caused the Germans to adjust the rocket launches which caused the rockets to start landing further east and as the campaign wore on, most of the rockets were impacting on the eastern edge of the Greater London Air Defence Zone.ack-ack
