Enlisted Marine Corps ranks are broken down into three levels, Junior Enlisted, Non-Commissioned Officers, and Staff Non-Commissioned Officers. As a Marine moves up the ladder his or her responsibility and contribution to the mission increases.
Also, children born abroad to two non-citizen nationals or to one alien parent and one non-citizen national parent are eligible for non-citizen national status. This is so rare that the State Department does not even issue a certificate for it. Non-citizen nationals are delineated as such in their passports.
1 Applicant is a US citizen over 18 years old, AND. 2  Applicant has never had a U.S. Passport issued before, OR. 3  Applicant was under 16 years old when most recent passport was issued OR. 4  Applicant has not had a U.S. Passport issued for over 15 years.