A Royal Navy fleet under Admiral Saumarez…
August 1809 CE
The presence of the British naval units keeps the Russian battlefleet strictly confined to Kronstadt and after the British construct artillery batteries to Porkkala cape they cut off the coastal sea route from Russian ships.
Total British control of the Gulf of Finland is a heavy burden for Russian supply network and requires sizable garrisons to be posted all along the Finnish coast.
The Royal Navy has captured altogether thirty-five Russian ships and burnt twenty others before leaving the Baltic Sea on September 28, 1809.