Editing List of naval battles (section)

===Russo-Swedish War (1788–1790)===

The Russian [[Julian calendar|calendar]] was eleven days behind the Swedish during the 18th century, so Russian dates are eleven days ''earlier''. 
* 1788 July 17 (6 July OS) [[Battle of Hogland|Hogland]] – Bloody engagement between Swedish and Russian battlefleets. Both sides lose a ship, but Swedes withdraw
* 1789 July 26 (15 July OS) [[Battle of Öland (1789)|Öland]] – Indecisive action between the Swedish and Russian battlefleets.
** 24 and 25 August (13 and 14 August OS) [[Battle of Svensksund (1789)|First Svensksund/Ruotsinsalmi]] in Finland – Russian galley flotilla decisively defeats Swedes.
** 18 September (7 September OS) – Russians defeat Swedes in a small battle in Barösund near Ingå in Finland.
* 1790 May 13 (2 May OS) [[Battle of Reval|Reval]] – Disastrous Swedish attack on Russian battlefleet at Reval (now Tallinn).
** 15 May (4 May OS) Fredrikshamn/Hamina in Finland – Swedish galley flotilla defeats Russian galley flotilla.
** 3 and 4 June (23 and 24 May OS) – Action off Kronstadt – Indecisive action between the battlefleets.
** 3 July (22 June OS) [[Battle of Vyborg Bay (1790)|Vyborg Bay]] – The Swedish battlefleet and galley flotilla break through the Russian blockade, suffering heavy losses.
** 9 and 10 July (28–29 June OS) [[Battle of Svensksund (1790)|Second Svensksund/Ruotsinsalmi]] in Finland – Decisive victory of the Swedish galley flotilla. The largest naval battle in the Baltic Sea of all times. Extremely heavy losses suffered by the Russians.