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Catalogue reference: HW 1/1603
This record is about the SHARK, U-boat cipher keys for Apr 12 broken. North Africa: GAF report on ground situation... dating from 1943 Apr 15 in the series Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister,.... It is held at The National Archives, Kew.
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HW 1/1603
1943 Apr 15
SHARK, U-boat cipher keys for Apr 12 broken.
North Africa: GAF report on ground situation Apr 12-13; GAF intentions for Apr 15; GAF Tunis concerned to provide adequate air defences for occupied airfields, Apr 14; GAF to attack harbours on Apr 15.
Mediterranean: AOC to arrive Sardinia for operations of arriving bomber units on Apr 15; orders for support of operation, Apr 14; Ju88s to Villacidro with armour piercing bombs, Apr 14; transfer of GAF Stuka to Sardinia, Apr 14 fighter protection for GAF bombers for attacks on harbours, Apr 14; heavy Allied bombing raid on GAF Elmas airfield, Apr 14.
Southern Russian Front: Soviet penetration in Kuban by 2-3 divisions, Apr 14; GAF to support counter attack against above penetration on Apr 15.
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Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister,...
SHARK, U-boat cipher keys for Apr 12 broken. North Africa: GAF report on ground situation...
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