Action of 21 May 1565

The Action of 21 may 1565 was a naval battle in the Northern Seven Years War, when the Swedes defeated the Danes.

On May 21, eight Danish ship was found north of Pomerania. They were there to prevent Swedish ships to get to and from Greifswald. Four of the ships fled into Greifswald to escape the Swedes, but they chose to burn the other four ships to prevent them falling into enemy hands.

Klas Horn planned to attack them inside the harbor, but after negotiations with the Duke of Pomerania, it was decided that the ships would be taken care of by the Duke on behalf of Sweden, pending a peace agreement, and their flags submitted to the Swedish admiral.