This episode we talk about The Kalmar War (1611-1613) would see the last time Denmark-Norway is able to defend its sound tolls and effectively fight against Sweden, the ascension of Gustavus Adolphus, and the militaristic societal changes going on in Sweden which would bring about its age of greatness for the next hundred years.

I would also highly recommend "The Northern Wars" by Robert Frost as he compiles information many of the primary and secondary sources which for the most part are exclusively in Polish, Swedish, and Russian and thus has been a very great resource for the material talked about in this episode and will be in future ones.