Can someone clarify military units sizes to me?

[Scouzer]

Poorly worded title, didn't know better...

Anyway this is what I think I know

3 Fireteams = Squad
3 Squads = Platoon
3 platoons = Company
3 Companies = Batallion
3 Batallions = Division (???)
2 or more Divisions = Corps
2 or more Corps = Army
2 or more armies = Army Group (?)

Now what I'm confused with is where does a Regiment fit into this?

 

[Scouzer]

Please? Ma bed time is soon.

 

[PsychoAndy]

Well, it goes Battalion, Group/Regiment, Brigade, Division, Corps, Army, Army Group, and Theater.

http://www.fas.org/man/dod-101/army/unit/index.html

 

[Scouzer]

Ah. Thanks, I knew I was missing a few types.

 

[AndrewR]

Keep in mind that the U.S. doesn't use too many regiments anymore -- I can think of four offhand (75th Ranger, two ACRs and the 160th SOAR). There are regimental affiliations, but regiments aren't main unit designators.

BTW, don't go to FAS if you can help it. They are selling out U.S. military information as fast as they can acquire it. B@stards.

 

[MadRat]

3-5 teams in a squad. (enlisted, Sergeant)
3-5 squads in a platoon. (officer, Lieutenant)
3-5 platoons in a company/battery. (officer, Captain)
3-5 companies (or batteries) in a battalion. (officer, Lieutenant Colonel)
3-5 battalions in a brigade. (officer, Colonel)
3-5 brigades in a division. (officer, Major General)
3-5 divisons in a corps. (officer, Lieutenant General)
3-5 corps in a army. (officer, General)

Ranks in the U.S. Army go as follows:

Enlisted:

Private, Private 1st Class, Corporal, Sergeant, Staff Sergeant, Sergeant 1st Class, Master Sergeant, First Sergeant, Sergeant Major, Command Sergeant Major, Sergeant Major of the Army

Junior Officers:

Warrant Officer (NCO), Chief Warrant Officer (NCO), Second Lieutenant, First Lieutenant, Captain

Senior Officers:

Major, Lieutenant Colonel, Colonel

General Staff:

Brigadier General, Major General, Lieutenant General, General, General of the Army

NOTE: NCO is a non-commissioned officer (otherwise known as an enlisted man) normally of at least the rank of Sergeant.