 The officer cadets and the staff of école des officiers de la gendarmerie nationale also use uniforms whose styling dates back to the 19th century.The Indonesian National Armed Forces, Indonesian National Police, and other uniformed institutions of the country have their own types of Dress uniforms known as "PDU", an abbreviation from "Pakaian Dinas Upacara" literally meaning "ceremonial uniform" in Indonesian; worn during formal occasions and when attending ceremonies.The Dress uniform (PDU) of the National Armed Forces consists of several categories which are