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Squad Leaders "fall in" first, and in order of first second third, facing the Platoon Sergeant with one arm's distance between them front to back. The respective squad's members fall in to the left of the Squad Leaders, generally in Fire Team order (1st 2nd 3rd). The Platoon Sergeant centers him/herself on the formation and when giving commands faces the formation. The Platoon Commander centers him/herself just behind and facing the back of the formation. Here's a diagram: Squad Leaders < < < < < < < < < < < < < < < PLT SGT > < < < < PLT Cmnder < < < < < < < < < < < < < < <
Most likely, there isn't much of one. The First Sergeant will know who the Post Commander is, but won't have much reason to interact with them, as they'd be quite far removed from each other as far as the chain of command goes.
It varies by each MOS (specific job), most of which it goes: Enlisted: Team Leader Squad Leader Section Sergeant Platoon Sergeant Company/Battery/Troop First Sergeant Battalion Command Sergeant Major Officers: Platoon Leader Company Executive Officer Company Commander Battalion Executive Officer Battalion Commander Brigade Executive Officer Brigade Commander Division Commander
Two entirely different things. The rear detachment First Sergeant, is someone is assigned in such a role, is the senior noncommissioned officer of that detachment, whereas the commander is the one actually in charge - typically, this will be a commissioned officer, although it is possible that an NCO could be tasked to fulfill the role.
There are several ranks of sergeants. Buck sergeants (three chevrons) and staff sergeants (three chevrons with one rocker) led squads, usually of about twelve men. A platoon had four squads. There was a platoon sergeant (three chevrons, two rockers), the top enlisted man in a platoon. The platoon commander was supposed to be an officer, a second lieutenant or a first lieutenant. Platoon leaders got killed a lot. Platoon leader was the single most lethal job of the war. When the lieutenant went down the platoon sergeant took over, until a new lieutenant was assigned. So, squad leaders reported to either the platoon sergeant or the platoon commander, and the platoon sergeant reported to the platoon commander, unless he had become the platoon commander. If the platoon sergeant was leading the platoon he met with the captain or the first lieutenant commanding the company, with the other platoon commanders, when officers were called to company HQ to discuss plans or receive orders.
There is no such rank as "First Class Sergeant". You have either Sergeant First Class, which is E7, or First Sergeant, which, along with Master Sergeant, is E8.
YES
First sergeant
First Sergeant (E8).
Major Charles Sweeney First Lieutenant Charles Albury Captain James Van Pelt, Jr. Captain Kermit Beahan Lieutenant Jacob Beser Staff Sergeant Ed Buckly Sergeant Abe Spitzer Master Sergeant John Kuharek Sergeant Raymond Gallagher Staff Sergeant Albert Dehart Commander Frederick Ashworth 2nd Lieutenant Fred Olivi
The lozenge is simply a device to differentiate a First Sergeant from a Master Sergeant, Sergeant Major, etc.
I am in JROTC (junior reserved officers in training corps) so I have to know... Private Private first class specialist or a corporal (I am a corporal) sergeant staff sergeant sergeant first class Master sergeant or first sergeant sergeant major command sergeant sergeant of the army