"King of Battle: A Branch History of the U.S. Army's Field Artillery" is the first volume in the TRADOC Branch History Series. Based on primary sources and a wide study of secondary literature, the volume provides a comprehensive historical summary of the development of field artillery in the U.S. Army since colonial times. The study focuses on the tactical, organizational, materiel, and training lessons learned - both those of wartime action and those of peacetime planning - in the larger framework of American military policy and strategy from the origins of the branch in European warfare to the modem artillery of the 1980s. This examination of the development of a major element of the Army fighting force provides an important contribution to the study of combined arms warfare and to the institutional history of the U.S. Army.