Overview Annex: Responsibility Sharing Factors and Analysis



Following a brief description of responsibility sharing factors used in our assessment and relevant data notes, this Annex provides country summary tables--i.e., statistical sketches portraying contributions and rankings of NATO nations, Japan, and the Republic of Korea.

NOTE: Due to noncomparable and incomplete data for the GCC countries, and in keeping with previous Reports, this Annex provides only limited quantitative detail regarding responsibility sharing efforts of our Gulf partners.


The broad array of countries' responsibility sharing efforts and contributions addressed in this Overview are subdivided into five major categories. These are: (1) aggregate resources for defense; (2) military forces for defense; (3) crisis management and peace operations; (4) economic and financial assistance; and (5) host nation support.

  • Aggregate Resources for Defense: The financial and personnel resources nations commit to defense remain their most important contributions to collective security. Financial contributions are measured by comparing the most comprehensive indicator of defense effort (defense spending) against the most comprehensive indicator of ability to contribute (GDP), and receive the greatest weight in country assessments. Personnel contributions are measured by comparing active duty and civilian defense personnel against the total labor force.

  • Military Forces for Defense: The standing military forces that nations raise and maintain represent their most basic defense capabilities, and thus comprise an

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