The term 'Army Vehicle' encompasses three different types of vehicles: a TANK, a JEEP, and an ARNIE. A TANK is a heavily armored combat vehicle that is usually armed with a large caliber gun. It is used by the military to provide support on the battlefield. A JEEP is a light, four-wheel drive vehicle that is used for reconnaissance and transportation. It is often used in off-road conditions. An ARNIE is a type of armored personnel carrier that is designed to transport troops and supplies. It is also used for reconnaissance and other missions. All three of these vehicles are essential to the operations of the Army.