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Óscar Arias Sánchez, a Costa Rican politician and Nobel Peace Prize laureate, was awarded the prestigious prize in 1987. He was recognized for his efforts to end the Central American civil wars and promote peace and democracy in the region. Arias's peace plan, which called for a ceasefire, amnesty for rebels, and free elections, was instrumental in bringing an end to the conflicts in Nicaragua, El Salvador, and Guatemala.