Costa Rica, officially the Republic of Costa Rica (Spanish: Costa Rica or República de Costa Rica, Spanish pronunciation: [reˈpuβlika ðe ˈkosta ˈrika]), is a country in Central America, bordered by Nicaragua to the north, Panama to the east and south, the Pacific Ocean to the west and south and the Caribbean Sea to the east. Costa Rica was the first country in the world to constitutionally abolish its army. Among Latin American countries, Costa Rica ranks 4th in terms of the 2007 Human Development Index. The country is ranked 5th in the world, and 1st among the Americas, in terms of the 2008 Environmental Performance Index.[3][4] In 2007 the government of Costa Rica stated that they want Costa Rica to be the first country to become carbon neutral by 2021.