Editors. "The War of Kalmer begins between Denmark and Sweden". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15693, accessed 17 April 2014.]
The War of Kalmar begins when Christian IV of Denmark declares war on Sweden, sending troops to Kalmar and the mouth of the Göta River. The conflict is to last until 1613, and end with Danish victory.