The Central Intelligence Agency (CIA) is an independent US
Government agency responsible for providing national security
intelligence to senior US policymakers.
This entry contains the total length of all land boundaries and the individual lengths for each of the contiguous border countries. When available, official lengths published by national statistical agencies are used. Because surveying methods may differ, country border lengths reported by contiguous countries may differ.
The online Factbook is updated bi-weekly. ISSN 1553-8133
For additional information on government leaders in selected foreign countries, go to World Leaders.