Armed Forces Knowledge

Armed Forces Ranks:

Enlisted Ranks:

Army

E-1: Private(no rank insignia)

E-2: Private

E-3: Private First Class

E-4: Corporal or Specialist

E-5: Sergeant

E-6: Staff Sergeant

E-7: Sergeant First Class

E-8: Master Sergeant/First Sergeant

E-9: Sergeant Major/Command Sergeant Major

Senior Enlisted Advisor: Sergeant Major of the Army

Air Force

E-1: Airman Basic(no rank insignia)

E-2: Airman

E-3: Airman First Class

E-4: Senior Airman

E-5: Staff Sergeant

E-6: Technical Sergeant

E-7: Master Sergeant/First Sergeant 

E-8: Senior Master Sergeant/First Sergeant

E-9: Chief Master Sergeant/First Sergeant/Command Chief Master Sergeant

Senior Enlisted Advisor: Chief Master Sergeant of the Air Force

Navy

E-1: Seaman Recruit(no rank insignia) 

E-2: Seaman Apprentice

E-3: Seaman

E-4: Petty Officer 3rd Class

E-5: Petty Officer 2nd Class

E-6: Petty Officer 1st Class

E-7: Chief Petty Officer

E-8: Senior Chief Petty Officer

E-9: Master Chief Petty Officer/Force or Fleet Command Master Chief Petty Officer

Senior Enlisted Advisor: Master Chief Petty Officer of the Navy

Marine Corps

E-1: Private(no rank insignia)

E-2: Private First Class

E-3: Lance Corporal

E-4: Corporal

E-5: Sergeant

E-6: Staff Sergeant

E-7: Gunnery Sergeant

E-8: Master Sergeant/First Sergeant

E-9: Master Gunnery Sergeant/Sergeant Major

Senior Listed Advisor: Sergeant Major of the Marine Corps

Officer Ranks:

Army/Air Force/Marine Corps:

O-1: Second Lieutenant

O-2: First Lieutenant 

O-3: Captain

O-4: Major

O-5: Lieutenant Colonel

O-6: Colonel

O-7: Brigadier General

O-8: Major General

O-9: Lieutenant General

O-10: General

Navy/Coast Guard

O-1: Ensign

O-2: Lieutenant Junior Grade

O-3: Lieutenant

O-4: Lieutenant Commander

O-5: Commander

O-6: Captain

O-7: Rear Admiral Lower Half

O-8: Rear Admiral Upper Half

O-9: Vice Admiral

O-10: Admiral