A T-90MS tank spews exhaust as it powers over an obstacle during the show. The T-90MS is the new, export version of Russia's premier tank, the 47-ton T-90. The T-90MS is equipped with a 125-mm main gun, infrared cameras, and a satellite navigation system. It also has a new version of a type of armor that explodes, sending out shrapnel toward incoming enemy rounds, destroying them before they can hit the tank. This armor (called Explosive Reactive Armor) has been used by the world's major militaries since the 1980s, defending their armored vehicles against anti-tank weapons capable of penetrating standard metal armor.