Mauritania
military junta

Mauritius
parliamentary democracy

Mayotte
NA

Mexico
federal republic

Micronesia, Federated States of constitutional government in free association with the US; the Compact of Free Association entered into force 3 November 1986 and the Amended Compact entered into force May 2004

Moldova
republic

Monaco
constitutional monarchy

Mongolia
parliamentary

Montenegro
republic

Montserrat
NA