T-55

Peru's Army operates approximately 300 T-55 main battle tanks acquired from the Soviet Union in the 1970s-1980s. The SIMA (Servicios Industriales de la Marina) industrial complex has conducted indigenous upgrade programmes including Elbit Systems (Israel) fire control integration and thermal imaging on some vehicles. Despite modernisation efforts the T-55 remains fundamentally a 1950s design with 100mm rifled gun, limited composite armour, and obsolete systems by modern standards. The fleet provides numerical deterrence for territorial defence — primarily against Ecuador — though the Andean terrain sharply limits armoured manoeuvre.