The U.S. Army is organized into three main rank groups: enlisted soldiers (E-1 to E-9 ), warrant officers (W-1 to W-5) and commissioned officers (O-1 to O-10). Each group reflects a different level of responsibility, expertise, leadership and pay . Enlisted soldiers make up 82% of the Army and get hands-on training, including for any career field that interests them. They perform most of the hands-on work -- from combat roles to technical tasks, logistics, administration and more. As they