In order to put pressure on Sweden to end clandestine trade and to
prevent Russo-Swedish alliance.
Citation:
Editors. "French re-occupy Swedish Pomerania and Rügen".
The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=13844, accessed 19 June 2013.]