The counterfactual changes more than the island's ownership. The opening notes the Helgoland and Heligoland forms of its name before turning to the strategic problem they identify. A British position close to Germany would give Anglo-German naval rivalry a physical focal point. Both navies would have to plan around access, defence, and concentration at a specific North Sea objective, turning a partly theoretical competition into an immediate operational problem.
Chapter · 0:00-1:06
Helgoland turns a theoretical rivalry into a practical problem
Why a British-held Helgoland would give both navies a concrete North Sea objective.