Corporal (E-4)

Corporal is the lowest grade as a Non-Commissioned Officer in the USMC. A Cpl is likely to fill supervisory roles at this point, with many leading fire teams or a weapons crew. Continuing education, self-discipline, and mentorship with higher ranks is key to establishing a career in the Marines.

To earn the title of Sergeant of Marines, a marine must pass the Squad Leadership development course, have excellent NCO review scores befit that of a Sergeant of Marines, and pass a promotional board.

Corporals serve as team leader or squad leader.