The National Guard was a militia and a gendarmerie created in 1925 during the occupation of Nicaragua by the United States. It became notorious for human rights abuses and corruption under the regime of the Somoza family (1936–1979). The National Guard was disbanded when the Sandinistas came to power in 1979.

The United States occupation of Nicaragua from 1912 to 1933 was part of the Banana Wars, when the U.S. military invaded various Latin American countries from 1898 to 1934. The formal occupation began in 1912, even though there were various other assaults by the U.S. in Nicaragua throughout this period. American military interventions in Nicaragua were designed to stop any other nation except the United States of America from building a Nicaraguan Canal.