Field Artillery in Military Operations Other Than War: An Overview of the US Experience by Combat Studies Institute Press

"One of the principal developments in European military technology during the 13th and 14th centuries was the advent of artillery tubes that used gunpowder to launch their projectiles at enemy targets. Initially, these artillery pieces were extremely large, heavy, cumbersome, inaccurate, and unreliable. Over the ensuing centuries, however, continuous technological breakthrough resulted in smaller, lighter, more accurate field guns that could, using many refines techniques, fire a variety of munitions ..." - ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS COMBAT STUDIES INST