Did the Kormoran action change Royal Navy policy toward commerce raiders?
Short answerIt reinforced the need for superior firepower and careful approach, because close identification gave a disguised raider a deadly opportunity.
NotesA disguised raider forced an approaching warship to balance positive identification against tactical safety. Closing the range made recognition easier but also surrendered the standoff advantage of the cruiser's heavier guns. The Kormoran encounter is treated as reinforcement for approaching with superior firepower and an organised engagement plan, rather than the origin of an entirely new Royal Navy policy. HMAS Sydney's loss illustrates the extreme danger of allowing an armed merchant ship to open fire at point-blank range.