Operation Outflank was the first combat operation of the British Pacific Fleet (BPF). It was a series of raids by the Fleet Air Arm on the oil refineries and storage facilities of the Empire of Japan on the island of Sumatra:

• Operation Robson (20 December 1944)
• Operation Lentil (4 January 1945)
• Operation Meridian I (24 January 1945), II (29 January 1945)

Units participating in Outflank received the "Palembang 1945" battle honour, after the main target of the attacks: the refineries at Palembang.

References

• Winton, John (1970). The Forgotten Fleet: The British Navy in the Pacific, 1944–1945. New York: Coward-McCann.
• Operation Outflank - Codenames : Operations of WW2