Top Secret Ultra, Том 10

able active Admiralty Adviser Africa aircraft allied American army arrived Atlantic attack battle became began beginning Bismarck breaking British broken called carried Chiefs commands course cryptographers cyphers deal decyphered duty enemy Enigma machine established example fact field forces France French front further gave German give given ground Gruppe hand head Hitler important intelligence intercepted invasion Italian kind knew known later less letters London Luftwaffe material months move nature naval never North Office operator original plans Poles position possible problem question Rommel rules Russian secret sent ships side signals staff success thing tion told traffic transmitted turn U-boat Ultra units Watch weeks wheels wireless