the PLA. The vehicle was also exported to North Korea, probably as part of a military assistance programme during the Korean War, where it saw combat for the first time. It was later used by the North Vietnamese Army during the Vietnam War. BTR-40 also saw combat service during the North Yemen Civil War during which at least one was captured from the Egyptians by the royalist guerrillas. List of conflicts 1956 – Hungarian Revolution of 1956 (Soviet Union) 1955–1975 – Vietnam War (Vietnam) 1962-1970 – North Yemen Civil War (Egypt) 1966–1991 – South African Border War (Angola, Cuba) 1967 – Six-Day War (Egypt, Syria) 1968 – Soviet invasion of Czechoslovakia (Soviet Union) 1969 – Sino-Soviet border conflict (Soviet Union) 1970–1975 Cambodian Civil War (Cambodia) 1973 – Yom Kippur War (Egypt, Syria) 1974–1991 – Ethiopian Civil War 1961–1991 – Eritrean War for Independence 1975–1990 – Lebanese Civil War 1975–1991 – Western Sahara War (Polisario) 1975–2002 – Angolan Civil War (Angola) 1977–1978 – Ogaden War (Somalia) 1978–1987 – Chadian–Libyan conflict 1979–1988 – Soviet–Afghan War (Soviet Union, Afghanistan) 1980–1988 – Iran-Iraq War (Iran) 1982 – 1982 Ethiopian–Somali Border War 2003–2005 – Insurgency in Aceh (Indonesia) Variants Former USSR BTR-141 (1947) – The original prototype with a faceted rear hull had two variants. The first was armed with twin ZPTU-2 14.5 mm KPV heavy machine guns placed in a rotary platform with armour protection at the front and sides. The second version had no permanent armament but later became the BTR-40. BTR-40 (1950) – Original production model. BTR-40A (1950) – BTR-40 converted into a SPAAG armed with twin ZPTU-2 14.5 mm twin anti-aircraft gun (2400 rounds) in a turret, later also used in the BTR-152A, manually operated by a single soldier. The turret is placed inside the troop compartment. It can make a full turn and its guns can elevate between -5 and +80 degrees. This variant does not have the firing ports in the hull sides. BTR-40V (1956) – BTR-40 fitted with an external tyre pressure regulation system. BTR-40B (1957) – BTR-40V with an armoured roof with four hatches. The vehicle has a filtering/ventilation system, NBC protection system and central tyre pressure regulation system. It also has a pintle mount for a 12.7 mm or 14.5 mm heavy machine gun, although the standard version of the BTR-40B had no fixed armament. It was designed for use as a reconnaissance vehicle. Crew was