The MBV-2 Armored Train was a Soviet armored rail vehicle developed during the late 1930s for use in reconnaissance, troop transport, and frontline support. It featured heavy armor plating and was armed with multiple machine guns, anti-tank guns, and cannon turrets, often derived from T-26 or BT-series tank designs. The train was propelled by a modified locomotive and designed to operate in hostile environments, providing mobile firepower and logistical support. The MBV-2 saw limited use during World War II, primarily in defensive and counter-insurgency roles, but its effectiveness was hampered by the vulnerability of rail-bound systems to air and artillery attacks.