Operation Details

Pearl

'Pearl' was the British cover designation for lower-grade 'Ultra' information (1941/45).

Basic Overview

Start date: 30 November 1940
End date: 30 November 1944
Scope: Medium
Nature: Strategic, Intelligence/reconnaissance
Status: Implemented

Nations Involved

Protagonists
  • UK
  • USA
Antagonists
  • Germany
  • Italy
  • Japan

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