These ranks are dividing into 4 sections of other groups with Soldiers,Vehicle Dispatch,Aircraft and Coast Guard assistance with different ranks.Depending on what Nickel500 tells you which position you are on your rank will be different.
Army Ranks
Private
Private 2
Private First Class
Specialist
Corporal
Sergeant
Staff Sergeant
First Sergeant
Sergeant Major
Sergeant Major of the Army
Second in Command
Third in Command
Seaman Recruit
Seaman Apprentice
Seaman
Petty Officer 3rd Class
Petty Officer 2nd Class
Petty Officer 1st Class
Chief Petty Officer
Senior Chief Petty Officer
Master Chief Petty Officer
Fleet/Commander Master Chief Petty Officer
Master Chief Petty Officer of the Navy
Air Force Ranks
Airman Basic
Airman
Airman First Class
Senior Airman
Staff Sergeant
Technical Sergeant
Master Sergeant
Master Sergeant (Diamond)
Senior Chief
Senior Chief (Diamond)
Chief Master Sergeant
Chief Master Sergeant (Diamond)
Command Chief Master Sergeant
Chief Master Sergeant of the Air Force
Marine Ranks
Private
Private First Class
Lance Corporal
Corporal
Sergeant
Staff Sergeant
Master Sergeant
First Sergeant
Master Gunnery Sergeant
Sergeant Major
Sergeant Major of the Marine Corps