Comendador is the capital of the Elías Piña province of the Dominican Republic. It has a border crossing to the Haitian town Belladère. The …Comendador is the capital of the Elías Piña province of the Dominican Republic. It has a border crossing to the Haitian town Belladère. The municipality had, in 2012, a total population of 43,894. In this numbers are included the population of the municipal district Sabana Larga.