Hidden Weapons: Allied Secret Or Undercover Services in World War II

Abwehr Admiralty afterwards agents Air Intelligence Air Ministry airfields Allied American April Arctic convoys armoured divisions Army Group arrived attempt authorities bombs brigade Britain British captured carrier Chiefs of Staff Churchill Code and Cypher convoy crews cruisers Cypher School Czechoslovakia decrypted Defence destroyers Deuxième Bureau diplomatic early encyphered enemy enemy's Enigma machine Enigma traffic escort espionage evidence February fighter fleet following day Foreign Office France French Germany's Government Code Hinsley Hitler ibid Intelligence Centre intelligence officers intercepted invasion Island Italian Japanese Joint Intelligence Committee Jones June Knickebein landings later launched London Luftwaffe March miles Military Intelligence Moravec Moscow naval Norway November offensive operations Peenemünde photographs raid received reconnaissance aircraft reports rocket Rommel Roskill Russians Secret Intelligence Service September ships signal intelligence signal intelligence service Soviet Union squadron tanks target Tirpitz Tobruk troops U-boats United Kingdom warning warships Western X-Gerät