Because of the seamlessly international nature of the Internet,
effective cyber security demands close cooperation with allies and
friends overseas. Yet, because of the relatively young status of the
discipline, national approaches to organizing and providing for cyber
defense vary widely even among those countries whose interests are most
closely aligned with those of the United States. The result is that the
bodies and structures responsible for cyber defense, and their
affiliations and mandates, can be difficult to understand. In this
Letort Paper, British cyber policy researcher Keir Giles and German
computer security specialist Kim Hartmann provide an overview of four
different national approaches to cyber defense: those of Norway,
Estonia, Germany, and Sweden. While providing a useful guide for
engagement with the relevant governmental and other organizations in
each of these countries, the Paper also compares and contrasts the
advantages and drawbacks of each national approach.