Q&A: Where would the Royal Navy operate inside the Baltic?

Would Royal Navy ships operating in the Baltic have used Russian bases?

Probably not; Copenhagen was a more plausible secure and supportable base if Britain forced access to the Baltic.

A Royal Navy force was unlikely to depend on Russian Baltic bases. Copenhagen and secured Danish defenses offered a more practical operating point near the Baltic entrance. Such a plan would also require troops to protect Denmark against German attack and a supply system able to sustain the fleet. Entering an enclosed sea depended on controlling and supporting a defensible base.