wear berets were the from the 1930s. Since World War II they have been adopted by all units. Berets vary in colour according to the regiment, and carry a badge (sometimes on a coloured shield-shaped patch) which is of gilt for officers, silver for non-commissioned officers and bronze for other ranks. Members of cavalry units all wear silver-coloured badges. Benin Bolivia Berets in Bolivian Army: Black — Paratroopers Maroon — Armoured Corps Green — Special Operations Forces, Commandos Camouflage — Special Forces "Bolivian Condors" Tan — Mountain Infantry (Satinadores de Montaña) Blue — Engineer units Berets in Bolivian Air Force: Royal Blue - Air Force Infantry personnel Brazil Bulgaria Berets have been worn by Bulgarian military personnel since 1991. Berets vary in colour according to the military branch, and carry a crest pin (sometimes on a coloured background patch) resembling the unit's insignia. Red — Bulgarian Land Forces and the counter-terrorism police detachment SOBT Light blue — Bulgarian Air Force and the 68th Special Forces Brigade Black — Bulgarian Navy SOF and the Gendarmerie Green — Military police C Cambodia Dark red - 911 Special Forces Regiment Royal Purple - Military Police Cameroon Bataillon des Troupes Aéroportées (Airborne Battalion) - dark red/maroon Bataillon Spécial Amphibie (Special Amphibious Battalion) - Dark green Bataillon d'Intervention Rapide (Rapid Intervention Battalion) - light green Fusiliers de l'Air (Air Force Infantry) - royal blue Fusiliers Marins (Marine Infantry) - black Garde Presidentielle (Presidential Guard) - royal purple " All others army units - Navy Blue " Gendarmerie (military Police) - Red Canada The colour of the beret is determined by the wearer's environment, branch, or mission. The beret colours listed below are the current standard: Chile Berets in Chilean Army: Black — Special Operations Brigade "Lautaro" (Commandos, Paratroopers and Special Combatants) Maroon — Armoured Cavalry Green — Mountain troops Olive green — Aviation Brigade Berets in Chilean Navy: Black — Combat Divers, combat crews and Maritime Boarding and Police operatives Green — Marine special forces Berets in Chilean Air Force: Dark blue — Parachuting demonstration group Boinas Azules and Ground troops Black — Special forces China Since May 5, 2000, the People's Liberation Army has adopted woolen berets for all its personnel, along with the traditional peaked caps. Type 99 beret Olive green — Ground Forces and Strategic Forces Dark blue — Navy Black - Marine corps Blue-grey — Air Force (including Airborne troops) Berets