Had surprise been achieved, the attack might well have succeeded, but Allied decoders at Ultra had intercepted and decrypted the orders for Operation Lüttich by August 4.
Var det blevet en overraskelse kunne angrebet godt være lykkedes, men allierede kodeknækkere havde opsnappet og afkodet ordren om Unternehmen Lüttich den 4. august.