Knud den Store : drømmen om Nordsøimperiet 1014-1066
Poul Skaaning
This book sets Gustavus in the context of Swedish and European dynastic politics and religious conflict in the early seventeenth century, and describes in detail Swedish military organization and Gustavus's reforms. His intervention in the Thirty Years War is covered in graphic detail, his alliance with France, his campaigns across the breadth of Germany and his generalship at the two major battles he fought there.