National cemetery is a burial place for men and women who served in the armed forces of the United States. Veterans are eligible to be buried in a national cemetery unless they received a dishonorable discharge. In addition, the spouses and dependent children of these veterans may be buried in national cemeteries. The government maintains 129 national cemeteries throughout the United States and Puerto Rico. More than 50 of them have no space for additional graves. Almost 2 million people are buried in national cemeteries.