The Bolivian Air Force ( or 'FAB') is the air force of Bolivia and branch of the Bolivian Armed Forces. History By 1938 the Bolivian air force consisted of about 60 aircraft (Curtiss Hawk fighters, Curtiss T-32 Condor II and Junkers W 34 bombers, Junkers Ju 86 used as transport craft, and Fokker C.V, Breguet 19 and Vickers Vespa reconnaissance planes), and about 300 staff; the officers were trained in Italy. In 2017 Bolivia finally retired the Lockheed T-33 marking the end of 44 years of service. Bolivia was the last operator of the T-33. Organization FAB is organized into air brigades, which is formed by one to three air groups. The air groups are based at La Paz, Cochabamba, Santa Cruz de la Sierra, Puerto Suárez, Tarija, Villamontes, Cobija, Trinidad, Riberalta, Roboré, Uyuni, Oruro, Sucre and Chimoré. Major commands included the following: General Command Systems Department in La Paz, equipped with sophisticated computers. Group of Air-Defense (Grupo Aereo de Defensa Anteaerea – GADA): GADA-91 (I BRIGADE), GADA-92 (II BRIGADE), GADA-93 (III BRIGADE), GADA-94 (IV BRIGADE), GADA-95 (V BRIGADE), GADA-96 (VI BRIGADE) and GADA-97 (I BRIGADE). Six air brigades with subordinate air groups. First Air Brigade (El Alto): Fighter group 31 "Gral. Jorge Jordán Mercado": Fighter squadron 311, Executive squadron 310 Transport air group 71 "Gen.W.A.Rojas" (Military airlift TAM):Air squadron 710, Air squadron 711, Air squadron 712 Aerophotogrammetry National Service (NSS) Air group 1 – Air group VIP Air group 66 – air base in Oruro Transporte Aereo Boliviano-TAB Task Force "Black Devils" Group air defence artillery GADA-91 Group air defence artillery GADA-97 Second Air Brigade (Cochabamba): Fighter group 34 "P.R.Cuevas": Aerotactico squadron 340, Link training squadron 341 Air group search and rescue 51: Helicopter Squadron 511 Air group training 22 – air base in Chimore (helicopter training) Air group 67 – air base in Sucre Group air defence artillery GADA-92 Third Air Brigade (Santa Cruz): Fighter group 32 "B.B.Rioja" (CEPAC): squadron 321, squadron 320, squadron 327 (maintenance) COLMILAV Air group training 21 – Training squadrons: primary squadron, basic squadron, squadron "NN" (prob.navigation) Air group 83(air base Puerto Suarez): 831 squadron Air group 61 "Gen.L.G.Pereiera (air base Robore): squadron 610 Task force "Red Devils" (air base El Trompillo-Robore) Group air defence artillery GADA-93 Fourth Air Brigade (Tarija): Air Group 82 "Cap.A.V.Peralta" (air base Camiri): squadron 821 Air Group 63 "Tcnl.E.L.Rivera" (air base Villamontes): squadron 630 Air Group 41 – (air