Counterfactuals as a naval-history method

Counterfactual history can examine the context around real choices rather than merely invent different outcomes. The absence of a major incident can matter because no dramatic action captures public attention and fixes a platform's reputation. One example asks how naval memory might have changed if an Arethusa-class cruiser or J-class destroyer, rather than a Tribal-class destroyer, had carried out the Altmark boarding. The cruiser would have brought more combat power but less room to maneuver, while the J class offered a more conventional destroyer with capability close to a Tribal. Changing the ship in that one conspicuous early-war action reveals how operational circumstances shape the later prominence of an entire class.