Army
An army is a military organization. It can refer to
any armed force, or more specifically a force primarily designed for
land-based war.
Most (but not all) armed forces make considerable organizational distinction between the land-based warfare of an army, the sea-based warfare of a navy, and the air-based warfare of an air force - often splitting the three components into mostly independent forces.
Modern armies use infantry, armoured fighting vehicles (e.g. tanks), artillery, and aircraft (usually helicopters).
An army can also refer to a large military unit.
Armies of the World
See also