 Costa Rica strongly backed efforts by the United States to implement UN Security Council Resolution 940, which led to the restoration of the democratically elected Government of Haiti in October 1994.Costa Rica was among the first to call for a postponement of the May 22 elections in Peru when international observer missions found electoral machinery not prepared for the vote count.Costa Rica is also a member of the International Criminal Court, without a Bilateral Immunity Agreement of protection for the US-military (as covered under Article 98)

In 1987, then President Óscar Arias authored a regional plan that served as the basis for the Esquipulas Peace Agreement and Arias was awarded the 1987 Nobel Peace Prize for his work.