On December 10, 2002, Costa Rica declared itself the first country free from anti-personnel landmines in the Western Hemisphere. Placed in hills and brooks, bridges and roads, mines and UXO were buried for more than 15 years during the conflict in Central America.
Perales, Jaime and Case, Carl
"Costa Rica: The First Country in Latin America Free of Anti-Personnel Landmines,"
Journal of Conventional Weapons Destruction: Vol. 7
, Article 43.
Available at: http://commons.lib.jmu.edu/cisr-journal/vol7/iss1/43