A ground-attack aircraft is an
aircraft that is designed to operate in direct support of ground forces such as
infantry,
tanks and other fighting vehicles. Their use is therefore tactical rather than strategic, operating at the front of the battle rather than against targets deeper in the enemy's rear. A number of names have or are used for ground-attack aircraft: attack aircraft, fighter-bomber, tactical fighter, tank-buster,
tactical bomber, etc.
See more at Wikipedia.org...