Mil Mi-24 is a twin-engined assault helicopter intended for close support of ground forces, destruction of armored targets and transportation of persons or cargo. Its design is a classic one with a five-bladed main rotor and three-bladed tail rotor. The Mi-24, the first helicopter to enter service with the Russian Air Force as an assault transport and gunship, was developed on the basis of the Mi-8's propulsion system. Additional missions include direct air support, antitank, armed escort, and air to air combat. The helicopter was used extensively in the Afghanistan War, becoming the "signature" weapon of the conflict. The Mi-24 is a counterpart to the American AH-64 Apache, but unlike this and other Western assault helicopters it is also capable of transporting up to eight troops. The Russians have deployed significant numbers of HINDs in Europe and have exported the HIND to many third world countries.