finns ingen anledning då alla officerare i marinkåren är Line Officers.
Däremot är det inte så i flottan.
http://en.wikipedia....ki/Line_officer
In the United States Navy, line officers are divided into unrestricted line officers and restricted line officers. Line officers wear an inverted gold star above their rank stripes on their dress blue uniforms and on their shoulder boards in whites. When wearing khakis, winter working blues or coveralls they wear their rank insignia on both collars.
The navy refers to non-line officers as Staff Corps officers. Both line and Staff Corps officers may be assigned as "staff officers" serving on the staff of a senior officer. Staff Corps officers wear their corps insignia, rather than the line officer's star, placed over their sleeve/shoulder stripes and on their left collar.
In the United States Marine Corps,
all officers including warrant officers and limited duty officers (LDOs) are line officers, trained to command combat units. Unlike the Navy the Marine Corps does not have Staff Corps, consequently all Marine Engineer, Supply, and Judge Advocate Division "JAG" officers are line officers. Additionally, the Marine Corps does not have its own Chaplain, Medical, Dental, Nurse, or Medical Service Corps, instead being served by those of the Navy.