Many drill procedures used by the United States Army today were developed during the Revolutionary War. The purpose of the drill then was to instill discipline in American soldiers. As these soldiers mastered the art of the drill, they began to work as a team and to develop a sense of pride in themselves and in their unit. In today's Army, the same objectives-teamwork, confidence, pride, alertness, attention to detail, esprit de corps, and discipline-are accomplished by drill.
A drill consists of a series of movements by which a unit or individuals are moved in an orderly, uniform manner from one formation to another or from one place to another. Units vary in size, but in basic combat training (BCT), you will ordinarily be part of a squad, section, platoon, or company.