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Peter M. SwartzKarin Duggan
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This brief is built around a series of charts, tables and maps on the following topics:

  • Introduction & summary
  • Pre-1970s deep legacy 51970s-2000s: Service comparisons 
  • 1970s 
  • 1980s 
  • 1990s 
  • 2000s 
  • What has driven the relationship? 
  • Concluding observations 
  • Selected bibliography
  • Glossary
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Approved for public release. Distribution unlimited.


  • Pages: 110
  • Document Number: MISC D0024022.A4/1Rev
  • Publication Date: 6/1/2011
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