Lesson Overview
A force is its people. Before anything useful can be planned, ordered, or sustained, command must know one plain thing: exactly who it has. This course is about the administration of people, and it begins where personnel administration itself begins, with the personnel picture, the true and current account of who is on strength and who the force is authorised to have. Get this picture right and everything else in personnel work has a foundation to stand on. Get it wrong, or let it drift out of date, and every plan built on it inherits the error.
This lesson sets the scene for the whole course. It draws a hard line between two ideas that are easy to confuse and costly to muddle: the establishment, which is the posts a force is authorised to have, and the strength, which is the people actually on it. It then introduces the two everyday instruments that hold the picture together, the nominal roll, which lists who is on strength by name, number, rank, and appointment, and the strength return, which reports the numbers up the chain of command. Running through all of it is a single principle that you will meet again and again: command cannot plan what it cannot count.
This is the knowledge layer. Reading and understanding the personnel picture is taught here; the hands-on administration of it, keeping a nominal roll current, drafting and rendering a strength return, reconciling the roll against the people on the ground, is practised and signed off in person where supervision allows, on a real or representative orderly-room set. By the end you will be able to define establishment and strength and explain how they differ and relate; explain what a nominal roll and a strength return are and what each is for; explain why command cannot plan what it cannot count; read an establishment-versus-strength comparison and identify where a force is over, under, or correctly held; and explain what it means to keep the personnel picture true and current, and why that discipline matters.
Key Terms
- Personnel administration: the routine administration of people, bringing them onto strength and seeing them off it, actioning the events of a career, and seeing that members get what they are due. This lesson covers its foundation, knowing exactly who is on strength.
- Establishment: the posts a force is authorised to have. It is the approved shape of the force, set by authority: so many posts, of such ranks, in such appointments. It describes posts, not people.
- Strength: the people actually on the force. It is the count of real members held on strength at a given moment, by name and number. It describes people, not posts.
- On strength: the state of being a current member counted against the force. A person comes on strength on attestation and goes off strength when they leave. Only those on strength belong on the nominal roll.
- Nominal roll: the list of who is on strength, naming each member and recording their number, rank, and appointment. It is the named account of the people, the answer to "who, exactly".
- Strength return: a report of the numbers on strength, rendered up the chain of command on a routine cycle. It is the counted account, the answer to "how many".
- Liability and entitlement: the two sides of an establishment line. The establishment carries an entitlement to hold a post; until the post is filled, that entitlement is a vacancy. Strength against establishment shows how much of the entitlement is met.
- Reconciliation: checking that the nominal roll, the service records, and the people actually present all agree, and correcting any difference. It is how the picture is kept true.
Establishment and strength: two different things
The single most important idea in this lesson is the difference between establishment and strength, because almost every error in the personnel picture comes from confusing them.
Establishment is the posts a force is authorised to have. It is the approved structure of the force, laid down by authority: a section is established for so many members of such ranks; a headquarters is established for an Adjutant, an Orderly Room NCO, and so many clerks. The establishment is a list of posts, described by rank and appointment, that the force is permitted and expected to hold. It does not name anyone. It is the shape of the force as authorised, the set of chairs the force is allowed to set out.
Strength is the people actually on the force. It is the real members, named and numbered, held on strength at a given moment. The strength is people in the chairs. A post on the establishment may be filled, in which case a real person on strength sits against it, or it may be vacant, in which case the chair is set out but empty. A person on strength may sit against an established post, or, more rarely and never ideally, be held without one.
The two are different in kind. Establishment is authorised posts; strength is actual people. One is the plan of the force, the other its reality. Personnel administration exists in the gap between them: its work is to know the strength truthfully, compare it against the establishment, and keep command informed of where the two part. A force is rarely at full strength. Posts fall vacant as people leave and are filled again as people join, so the strength rises and falls against a fixed establishment. The administrator's job is not to pretend the gap away but to measure it honestly.
ESTABLISHMENT vs STRENGTH (an example section)
ESTABLISHMENT STRENGTH
(posts AUTHORISED) (people ACTUALLY held)
---------------------- ----------------------------------
Post Rank Appt Member No. against post
---------------------- ----------------------------------
1 Sergeant Comd K0412 (Sgt) filled Post 1
2 Corporal 2IC K0533 (Cpl) filled Post 2
3 Private Rifleman K0691 (Pte) filled Post 3
4 Private Rifleman K0704 (Pte) filled Post 4
5 Private Rifleman --- VACANT --- (no one on strength)
6 Private Rifleman K0688 (Pte) filled Post 6
Established: 6 posts On strength: 5 people
Filled: 5 Vacant: 1 State: UNDER-STRENGTH by 1
In the figure the section is authorised six posts but holds only five members; one rifleman post is vacant. The force is under-strength by one. Note what the picture tells command at a glance: not just a number, but where the gap is and what rank and appointment is missing. That is the value of holding establishment and strength side by side rather than as two unrelated facts.
Reading the gap: over, under, and correctly held
When strength is compared against establishment, a post or a force can be in one of three states, and an administrator must be able to name each.
A force is at established strength, or correctly held, when the people on strength match the posts authorised, in number and in the right ranks and appointments. This is the ideal and the planning assumption, though it is seldom exactly true for long.
A force is under-strength when it holds fewer people than the establishment authorises. There are vacant posts: chairs set out with no one in them. Under-strength is the common condition of a real force, because people leave faster than they can always be replaced. It matters because a vacant post is work no one is doing, or work falling on others. Command needs to know not only that the force is under-strength but where, since a vacant rifleman post and a vacant section commander post are very different problems.
A force is over-strength, or over-borne, when it holds more people than the establishment authorises, or holds someone of a rank or appointment the establishment does not carry. This is less common but real: a member may be held on strength awaiting a post, or carried after a reorganisation has cut the establishment but not yet moved the people. Over-strength matters too, because it usually means someone is on the pay account without an authorised place, which authority will eventually question.
The administrator's skill is to read these states correctly and report them plainly. It is not enough to say "we have thirty-one members". The useful statement is "we are established for thirty-four and hold thirty-one, so we are three under, those being two riflemen and a driver". That tells command something it can act on.
The nominal roll: who, exactly
The nominal roll is the list of who is on strength. It names every current member and records, for each, the number, the rank, and the appointment. It is the named, person-by-person account of the force's people, and it answers the question "who, exactly, do we have?"
Four pieces of identity sit on every roll line, and each does a job. The name identifies the human being. The service number identifies the record uniquely and never changes, which matters because names repeat and people are sometimes known by more than one; the number is the anchor that ties the line to the one true service record. The rank states the member's place in the order of seniority and what they may be appointed to do. The appointment states the duty they actually hold, which is not the same as rank: a Corporal may hold the appointment of section second-in-command, a Second Lieutenant the appointment of Adjutant. Rank is what you are; appointment is what you do.
A nominal roll is only as good as its currency. It is a snapshot of who is on strength at a moment, and people come and go, so a roll is true only on the day it is made and must be updated as the strength changes. Every joining adds a line, every departure removes one, every promotion or change of appointment alters a line. A roll that is not maintained quietly drifts away from the truth until it lists people who have gone and omits people who have come, at which point it is worse than useless, because it is trusted and wrong.
NOMINAL ROLL (extract) Unit: HQ Section
As at: 13 Jun 2026 Held on strength: 6
No. Rank Name Appointment
----- ----- ---------------- ----------------------
K0118 Capt [member] Officer Commanding
K0205 Ensn [member] Adjutant
K0377 Sgt [member] Orderly Room NCO
K0412 Cpl [member] Clerk
K0533 Pte [member] Clerk
K0691 Pte [member] Driver / Storeman
----- ----- ---------------- ----------------------
Compiled by: Orderly Room NCO Checked against records: yes
The roll above lists six members by number, rank, name, and appointment, with the date it is true as at, who compiled it, and confirmation that it was checked against the records. Those last three lines are not decoration. A roll without a date is a snapshot with no time on it; a roll without an author is a claim no one stands behind; a roll not checked against the records is an assertion, not a verified account. Hold to that discipline and the roll can be trusted.
The strength return: how many, reported up
Where the nominal roll answers "who", the strength return answers "how many", and it carries that answer up the chain of command. A strength return is a report of the numbers on strength, rendered to the higher headquarters on a routine cycle so that command always holds a current count of the force.
A strength return is built from the nominal roll but is not the same thing. The roll is the detailed, named source held in the orderly room; the return is the summary count sent upward. Higher command does not usually need every name; it needs the numbers, broken down enough to plan with, by unit, by rank group, and against establishment. The return distils the roll into the figures command requires and sends them where the planning is done.
A strength return is rendered routinely, not only when asked. Personnel administration runs to a battle rhythm, a routine cycle of returns and reports, and the strength return has its place in that cycle, so the picture at the top is refreshed on a known schedule rather than being chased in a crisis. A return is also rendered against establishment, not in isolation, because the bare number of people is far less useful than the number set against what was authorised: command wants to see held, established, and the gap between them.
STRENGTH RETURN (extract) From: A Coy Orderly Room
As at: 13 Jun 2026 To: Bn Headquarters
Sub-unit Estab Held +/- Of which:
--------- ----- ---- ---- on leave / on course / sick
HQ Sec 6 6 0 1 / 0 / 0
1 Section 8 7 -1 0 / 1 / 0
2 Section 8 6 -2 1 / 0 / 1
3 Section 8 8 0 0 / 2 / 0
--------- ----- ---- ---- ---------------------------
TOTAL 30 27 -3 2 / 3 / 1
Available (held, less leave/course/sick): 21
Rendered by: Orderly Room NCO Authorised by: OC
This return reports a company established for thirty and holding twenty-seven, three under-strength, and then does the further work command actually needs: it shows that of the twenty-seven held, six are not presently available, being on leave, on course, or sick, leaving twenty-one available. The held figure tells command who is on the books; the available figure tells command who it can actually call on today. Both matter, and a good return gives both rather than leaving command to guess the difference.
Why command cannot plan what it cannot count
Everything in this lesson serves one principle: command cannot plan what it cannot count. The personnel picture is not paperwork for its own sake; it is the basis on which the force is commanded, and a force that does not know its own strength cannot be soundly commanded at all.
Consider what command does with the count. It assigns tasks, and it cannot match a task to a force whose size it does not know. It plans reliefs, leave, and training, and it cannot balance who is away against who must remain if it does not know how many there are. It sustains the force, and it cannot draw the right rations, pay, or kit for a strength it has only guessed. It requests reinforcement, and it cannot ask for the right number to fill a gap it has not measured. Every one of these acts rests on a true count, and a wrong count carries the error straight into the decision.
The danger is sharpest in the gap between the figure on the page and the people on the ground. A roll that says thirty when twenty-seven are present has an operational fault, not merely an administrative one: command may commit to a task on the strength of three people who are not there. The harm runs the other way too. A force counted short when it is in fact at strength may turn away a task it could have done, or ask for reinforcement it does not need. In both directions the false count misleads command, and a decision is only ever as good as the count beneath it.
This is why the administrator's count is taken seriously and rendered honestly. The temptation to round up, to leave a leaver on the books a little longer, to report the establishment as though it were the strength, must be resisted absolutely, because the count is acted upon. A comfortable figure that is wrong does far more harm than an uncomfortable figure that is right. The whole worth of personnel administration rests here: it gives command a true count, so that command can plan on reality rather than on hope.
Keeping the picture true and current
A personnel picture is true only for as long as it is maintained, because the force it describes is always changing. People join and leave, are promoted and appointed, go on leave and on course, fall sick and recover. Each of these is an event that changes the picture, and the picture stays true only if the event is recorded promptly and the roll and return updated to match. A picture compiled once and left alone is a photograph of a moment that has already passed.
The work of keeping it true has a shape. Events are recorded as they happen, not gathered up later, because a backlog of unrecorded events is a roll quietly growing false. The roll is updated from the events, so that the named account always reflects the latest joinings, departures, and changes. The return is rendered from the current roll on its routine cycle, so the count at the top stays fresh. And, crucially, the picture is reconciled: the roll is checked against the service records and against the people actually present, and any difference is run down and corrected.
Reconciliation is the discipline that keeps the picture honest. Three things should always agree: the nominal roll, the service records behind it, and the bodies actually on the ground. When they do not, something is wrong and must be found. A name on the roll with no one present means a departure not recorded; a person present with no line on the roll means a joining not entered; a roll line the records do not support means an error in one or the other. The administrator does not paper over these differences but investigates and corrects them, because a reconciled picture is a true one and an unreconciled picture only looks true. Where supervision allows, this reconciliation is practised in person on a real or representative roll, because it is a skill of the hands as much as the head.
True and current is therefore not a state you reach once but a standard you hold continuously: true by recording events as they occur, current by updating promptly, honest by reconciling regularly. Hold to that and command always has a count it can trust. Let it slip and the picture decays silently, looking authoritative while drifting from the truth, until the day command acts on it and the gap is paid for in earnest.
In Practice: The Roll That Did Not Add Up
An Orderly Room NCO sits down on a Friday to render the company's weekly strength return to battalion headquarters. The nominal roll on the system shows thirty members held against an establishment of thirty. A tidy figure, fully held, nothing to flag. The easy thing would be to copy it into the return and send it up.
She does not. Before she renders a return she reconciles, so she walks the roll against two other things: the service records, and the company's own daily attendance and leave state. The records throw up the first problem at once. One member, K0709, was discharged ten days ago; the out-processing was done, his kit cleared and his access revoked, but the line was never struck from the nominal roll. He is off strength in truth but still on the roll on paper. That is one phantom.
The leave state throws up the second kind of problem, though not an error this time. Four members are away: two on leave, one on a course at the College, one sick. They are correctly on strength, the roll is right to list them, but they are not available this week. The roll counts them; the return must distinguish them, or command will read thirty available when only twenty-five can be called on.
So she corrects and renders honestly. She strikes K0709 from the roll, noting the discharge authority and date, which brings the held figure to twenty-nine against an establishment of thirty: one under, a vacancy command should know about so it can seek a replacement. Then she builds the return to show both figures: twenty-nine held, and of those, four not available, leaving twenty-five available this week. She dates it, signs it as having rendered it, and takes it to the Officer Commanding to authorise before it goes up.
The return that goes to battalion now tells the truth twice over. It does not carry a discharged man as though he were still serving, and it does not let a held figure masquerade as an available one. Battalion plans the weekend's tasking on twenty-five real, present members and a known vacancy, not on a comfortable thirty that was three different kinds of wrong. The whole of the NCO's value was in the half-hour of reconciliation she did before she let the figure leave her hands.
Check Your Understanding
- Define establishment and define strength, and explain how they differ. Using the idea of posts and people, explain what it means for a force to be under-strength, over-strength, and at established strength, and why command needs to know not just that a force is under-strength but where the gap falls.
- Explain what a nominal roll is and what a strength return is, what question each answers, and how the two relate. Why does the nominal roll record a service number as well as a name, and why must a strength return show held strength against establishment, and distinguish held from available?
- Explain the principle that command cannot plan what it cannot count. Give two examples of decisions command makes from the personnel count, and explain the harm that follows when the count is wrong in each direction, too high and too low. Then explain what reconciliation is and why it keeps the picture true.
Reflection (write a short paragraph): This lesson teaches that a personnel picture looks just as authoritative when it is wrong as when it is right, and that the difference is invisible until command acts on it. A roll carrying a discharged member, or a return showing held strength as though it were available, reads as cleanly as a true one; the error surfaces only later, in a task committed on people who were not there. Be honest with yourself about the pull toward the comfortable figure: the tidy "fully held", the leaver left on a little longer, the awkward gap rounded away. Then weigh what rides on resisting it, command planning on reality rather than hope. Describe one habit you could build now, in any record you keep, that would make you the kind of administrator who reconciles before they report rather than after the gap is paid for.
Summary
- Establishment is the posts a force is authorised to have; strength is the people actually on it. Establishment describes posts, strength describes people, and personnel administration lives in the gap between them: knowing the strength truthfully and comparing it against the establishment.
- Strength against establishment leaves a force correctly held, under-strength (vacant posts), or over-strength (more people than posts, or the wrong ranks). Report not just the number but where the gap falls and what rank and appointment is short, because that is what command can act on.
- The nominal roll lists who is on strength by number, rank, name, and appointment, and answers "who, exactly". The strength return reports how many on strength, rendered up the chain against establishment on a routine cycle, and answers "how many". The return is built from the roll but distils it to the figures command needs, including held versus available.
- Command cannot plan what it cannot count. Tasking, reliefs, sustainment, and reinforcement all rest on a true count, and a false count, high or low, carries its error straight into command's decision. The administrator's count is rendered honestly because it is acted upon.
- A picture is true only while maintained: record events as they happen, update the roll promptly, render the return on cycle, and reconcile the roll against the records and the people present, correcting every difference. True, current, and honest is a standard held continuously, not a state reached once.
- This lesson is the foundation of ADM 210. It leads on to Joining and Leaving (Lesson 02), where the events that change the roll are processed; Promotions, Appointments, and Postings (Lesson 03); Pay, Leave, and Entitlements (Lesson 04); and Returns, Reports, and the Strength Account (Lesson 05), which builds out the returns cycle. It rests on ADM 201 (Service Records and Registry), where the service record and the Part II order live, and connects to PME 210 (service writing for returns), CIS 220 (access for joiners and revocation for leavers), LOG 201 (the stores-accounting parallel of holding a true count), and LDR 420 (the integrity an honest count demands).
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