The Army considers all Corporals (E-4), Sergeants (E-5) and Staff Sergeants (E-6) as Junior Non-Commissioned Officers (NCOs) and are given the same respect and any NCO. The Corporal is at the base of the NCO rank. They serve as unit leaders and team leaders. They are responsible for the individual training, personal appearance and cleanliness of the soldiers below them.
Sergeants operate in high speed environments. They have the greatest impact on the lower ranking