Operation Flabbergast

This was a British deception operation designed by the 'D' Division to support the 'Extended Capital' and 'Dracula' (ii) recapture of central Burma and Rangoon by Lieutenant General Sir William Slim’s 14th Army by suggesting to the Japanese that the higher-priority British intention was the recapture of Malaya via Sumatra in the Netherlands East Indies (September/October 1944).

'Flabbergast' had only a one-month life, and on 21 November the definitive deception for 'Extended Capital' became 'Stultify'.