units of Land Force garrisons. As operating units of the Army Police, there are several battalions, companies, and platoons, including riot control, K-9, motorcyclists, and regular troops. Military Police of the Brazilian Army are identified by the use of black armband with the letters "PE" in white (or white armband with red letters). Commonly, the term "Military Police" is used to refer to the State Military Police Forces. Current Equipment Main battle tanks – 469 M60A3 TTS, Leopard 1A1 and Leopard 1A5/GR) Armored vehicles – 1,976 (Iveco LMV 4x4, AV-VBL 4x4, Cascavel 6x6, Urutu 6x6, Guarani 6x6, M113, M577 and Armoured recovery vehicle) Artillery pieces – 1,149 (120mm mortar, ASTROS, M101, M114, 105mm Mod 56, L118, Oerlikon 35mm and Bofors 40 mm) Self-propelled artillery – 212 M109, M992 and Gepard) Surface-to-air missile system – 239 (9K38 Igla and RBS 70) River Boats - 74 (LPR-40, Guardian 25, MRCD 1200/1250, DGS ETRH, DGS 999 Raptor, Ferryboats, Tugboats and Catamarans) Other military vehicles – ~20,000 (Agrale Marruá, Toyota Hilux, Mitsubishi Pajero, Land Rover Defender, Toyota Land Cruiser, Ford F, Worker, Atego, Constellation, Unimog, Tatra 815, motorcycles, buses and others) In addition the Brazilian Army Aviation Command operates 94 helicopters and UAVs. Transport helicopters – EC 725 Caracal Attack and Observation helicopters – HB350 Esquilo, AS550 Fennec and AS565 Panther Multi-mission and rescue helicopters – AS532 Cougar and Sikorsky S-70A Tatical unmanned aircraft system - Nauru 1000c Current Equipment of the Brazilian Army Ranks, uniforms, and insignia The senior-most commissioned rank in the Brazilian Army is the "General de Exército" (), a "four-star" general. In times of war, or in exceptional circumstances, a fifth star may be worn by the highest-ranking officer in the army, who is then promoted to "Marechal", (). Brazilian Army officers wear rank insignia on shoulder boards and the army has ten officer ranks, also known as "grades", excluding that of an officer candidate. Brazilian Army officer ranks from second lieutenant to colonel equate directly with counterparts in the United States Army, but thereafter the systems diverge. A Brazilian "General de Brigada" () wears two stars, with duties equivalent to a U.S. Army major general, the next higher rank, "General de Divisão" (), equivalent to an American lieutenant general, wears three; their United States counterparts have only two and three stars, respectively. The next higher rank, designated by four stars, is "General de Exército" (). The Marshal wears five