US Army WWII Ranks

Enlisted rank insignia 1920-1942

Arm Rank	Abbreviation	Rank
	Pvt.	Private
	Pfc.	Private First Class
	Cpl.	Corporal
	Sgt.	Sergeant
	S/Sgt.	Staff Sergeant
	T/Sgt.	Technical Sergeant
	1st Sgt	First Sergeant
	M/Sgt.	Master Sergeant

Enlisted rank insignia 1942-1948

Arm Rank	Abbreviation	Rank
	Pvt.	Private
	Pfc.	Private First Class
	T/5.	Technician Fifth Grade
	Cpl.	Corporal
	T/4.	Technician Fourth Grade
	Sgt.	Sergeant
	T/3.	Technician Third Grade
	S/Sgt.	Staff Sergeant
	T/Sgt.	Technical Sergeant
	1st Sgt	First Sergeant
	M/Sgt.	Master Sergeant

A technician was generally not addressed as such, but rather as the equivalent line (NCO) rank in its pay grade (T/5 as Corporal; T/4 as Sergeant; T/3 as Sergeant or Staff Sergeant). Officially, a technician did not have the authority to give commands or issue orders but could under combat conditions be placed second in command of a squad by a Sergeant. Unofficially, most units treated them as though they were of the equivalent rank of the same pay grade.

Officer rank insignia

Collar Rank	Abbreviation	Rank
	2LT	Second Lieutenant
	1LT	Fisrt Lieutenant
	Cap.	Captain
	Maj.	Major
	LTC	Lieutenant Colonel
	Col.	Colonel

General rank insignia

Collar Rank	Abbreviation	Rank
	Bg.	Brigadier General
	Mg.	Major General
	Ltg.	Lieutenant General
	Gen.	General
	Ga.	General of the Army