U.S. Army FM 3-90 Tactics (2001).pdf

"Doctrine provides a military organization with a common philosophy, a language, a purpose, and unity of effort. Tactics is the art and science of employing all available means to win battles and engagements. Specifically, it compromises the actions taken by a commander to arrange units and activities in relation to each other and the enemy. FM 3-90 introduces the basic concepts and control measures associated with the art of tactics."-From the Preface.