A motor rifle division is roughly the equivalent of a mechanised infantry division in other armies, equipped with armoured personnel carriers (APCs), infantry fighting vehicles (IFVs), and tanks. A motor rifle division was one of the two standard types of division in Warsaw Pact armies, alongside tank divisions. Motor rifle divisions were the heavy combat formations used in defence or for deliberate breakthrough operations, while tank divisions were lighter and more mobile and used for exploitation and counter-attack.