The primary aim of a defensive player in football is to prevent the offensive team from advancing and scoring. Through tactics such as tackling, intercepting passes, and creating turnovers, defensive players aim to disrupt the offensive flow and regain possession of the ball. Successful defensive strategies are crucial, as they can turn the tide of a game and contribute to a team's overall success. Defensive roles can vary, with linemen, linebackers, and defensive backs employing specific techniques suited to their responsibilities.