13th Marіne Expeditionary Unіt #968895763

12

members (measured 7 Oct 2026, 09:27 UTC)

1 August 2025

created (per Roblox API)

10 August 2026

first measured by this register

Membership history

Growth

2 measurements spanning 30 days, net -1. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 12–13 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
10 Sept 2026, 06:19	12	-1
10 Aug 2026, 19:21	13	first reading

Ownership

Owned by @USMHoIdr as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

@USMHoIdr — Secretary of Defense (rank 255)

Dev (@devvzk) — Joint Staff (rank 23)

@Yankees_519 — Marine Headquarters (rank 21)

EGG_fyre (@c9fye) — Awaiting Assignment (rank 6)

Ace (@ayskui) — Member (rank 1)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Secretary of Defense1

Department of Defense1

Chairman of the Joint Chiefs of Staff1

Joint Staff1

Commandant of the Marine Corps1

Marine Headquarters5

▬▬▬▬▬▬▬▬▬▬0

1MEF Commanding General0

1MEF Staff0

Commanding General0

Executive Officer0

Senior Enlisted Leader0

Combat Element Commanding Officer0

Combat Element Executive Officer0

Combat Element Senior Enlisted Advisor0

Combat Element Staff0

3rd Battalion, 5th Marines0

1st Battalion, 11th Marines0

VMM-3640

1st Combat Engineer Battalion0

Awaiting Assignment3

Member13

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

United States MiIitаry#8994184 · 5 shared members

United States Marine Corрs#34000980 · 5 shared members

I Marine Expеditionary Forcе#34654070 · 5 shared members

Unіted Stаtеs Navy#14203249 · 4 shared members

Department оf Defensе#32835924 · 4 shared members

Marine Forces Specіal Operations Command#34654118 · 4 shared members

Naval Special Warfarе Cоmmand#32615383 · 4 shared members

Military Exchаnge#32842190 · 4 shared members

1st Marіnе Divisiоn#34654096 · 4 shared members

United States Military Moderation#32930678 · 4 shared members

Marіne Raider Regіment#34654170 · 4 shared members

Office оf the Inspector GeneraI#32835997 · 4 shared members

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.