Artillery is an engine of war that uses stored energy, whether mechanical, chemical, or electromagnetic, to project munitions far beyond the effective range of personal weapons
Originally applied to any group of infantry primarily armed with projectile weapons, artillery has over time become limited in meaning to refer only to those engines of war that operate by projection of munitions far beyond the effective range of personal weapons. These engines comprise specialised devices which use some form of stored energy to operate, whether mechanical, chemical, or electromagnetic. Originally designed to breach fortifications, they have evolved from nearly static installations intended to reduce a single obstacle to highly mobile weapons of great flexibility in which now reposes the greater portion of a modern army's offensive capabilities. Since the development of cannon, the word 'artillery' in practice has largely meant cannon; in contemporary usage it usually refers to shell-firing guns, howitzers, mortars, and rockets.
Contributions by Nfe, Tom harrison, and Motorfix.