Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # National security. 249 SEE ALSO narrower term: Border security. 21 SEE ALSO: Economic policy 114 SEE ALSO: International relations 224 SEE ALSO: Military policy. 153 National security -- 21st century. 1 National security -- Afghanistan 14 National security -- Afghanistan -- Costs. 1 National security -- Afghanistan -- Evaluation. 1 National security -- Afghanistan -- International cooperation. 2 National security -- Afghanistan -- Periodicals. 1 National security -- Africa 18 National security -- Africa -- History -- 20th century. 1 National security -- Africa, North. 5 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >